3220031 has 4 divisors (see below), whose sum is σ = 3238200. Its totient is φ = 3201864.

The previous prime is 3220027. The next prime is 3220033. The reversal of 3220031 is 1300223.

3220031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1300223 = 71 ⋅18313.

It is a cyclic number.

It is not a de Polignac number, because 3220031 - 2² = 3220027 is a prime.

It is a super-2 number, since 2×3220031² = 20737199281922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3219994 and 3220021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8816 + ... + 9173.

It is an arithmetic number, because the mean of its divisors is an integer number (809550).

Almost surely, 2^3220031 is an apocalyptic number.

3220031 is the 803-rd centered decagonal number.

3220031 is a deficient number, since it is larger than the sum of its proper divisors (18169).

3220031 is a wasteful number, since it uses less digits than its factorization.

3220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18168.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 3220031 is about 1794.4444822841. Note that the first 4 decimals coincide. The cubic root of 3220031 is about 147.6680990734.

Adding to 3220031 its reverse (1300223), we get a palindrome (4520254).

The spelling of 3220031 in words is "three million, two hundred twenty thousand, thirty-one".