3220477 has 4 divisors (see below), whose sum is σ = 3468220. Its totient is φ = 2972736.

The previous prime is 3220471. The next prime is 3220499. The reversal of 3220477 is 7740223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7740223 = 2239 ⋅3457.

It can be written as a sum of positive squares in 2 ways, for example, as 1907161 + 1313316 = 1381^2 + 1146^2 .

It is not a de Polignac number, because 3220477 - 2¹⁹ = 2696189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123852 + ... + 123877.

It is an arithmetic number, because the mean of its divisors is an integer number (867055).

Almost surely, 2^3220477 is an apocalyptic number.

It is an amenable number.

3220477 is a deficient number, since it is larger than the sum of its proper divisors (247743).

3220477 is a wasteful number, since it uses less digits than its factorization.

3220477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247742.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 3220477 is about 1794.5687504245. The cubic root of 3220477 is about 147.6749164955.

The spelling of 3220477 in words is "three million, two hundred twenty thousand, four hundred seventy-seven".