3925231 has 4 divisors (see below), whose sum is σ = 3929200. Its totient is φ = 3921264.

The previous prime is 3925223. The next prime is 3925253. The reversal of 3925231 is 1325293.

It is a happy number.

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 3925231 - 2³ = 3925223 is a prime.

It is a super-2 number, since 2×3925231² = 30814876806722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

3925231 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3925196 and 3925205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3925261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835 + ... + 2923.

It is an arithmetic number, because the mean of its divisors is an integer number (982300).

Almost surely, 2^3925231 is an apocalyptic number.

3925231 is a deficient number, since it is larger than the sum of its proper divisors (3969).

3925231 is a wasteful number, since it uses less digits than its factorization.

3925231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968.

The product of its digits is 1620, while the sum is 25.

The square root of 3925231 is about 1981.2195738989. The cubic root of 3925231 is about 157.7448078339.

The spelling of 3925231 in words is "three million, nine hundred twenty-five thousand, two hundred thirty-one".