3421931 has 4 divisors (see below), whose sum is σ = 3425664. Its totient is φ = 3418200.

The previous prime is 3421927. The next prime is 3421937. The reversal of 3421931 is 1391243.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3421931 - 2² = 3421927 is a prime.

It is a super-2 number, since 2×3421931² = 23419223537522, 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 = 3421897 and 3421906.

It is not an unprimeable number, because it can be changed into a prime (3421937) 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, 566 + ... + 2676.

It is an arithmetic number, because the mean of its divisors is an integer number (856416).

Almost surely, 2^3421931 is an apocalyptic number.

3421931 is a deficient number, since it is larger than the sum of its proper divisors (3733).

3421931 is a wasteful number, since it uses less digits than its factorization.

3421931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3732.

The product of its digits is 648, while the sum is 23.

The square root of 3421931 is about 1849.8462098239. The cubic root of 3421931 is about 150.6920760350.

The spelling of 3421931 in words is "three million, four hundred twenty-one thousand, nine hundred thirty-one".