3925431 has 12 divisors (see below), whose sum is σ = 5742880. Its totient is φ = 2583360.

The previous prime is 3925421. The next prime is 3925459. The reversal of 3925431 is 1345293.

It is not a de Polignac number, because 3925431 - 2¹⁷ = 3794359 is a prime.

It is a super-2 number, since 2×3925431² = 30818017071522, 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 = 3925395 and 3925404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3925421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2050 + ... + 3471.

Almost surely, 2^3925431 is an apocalyptic number.

3925431 is a deficient number, since it is larger than the sum of its proper divisors (1817449).

3925431 is a wasteful number, since it uses less digits than its factorization.

3925431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606 (or 5603 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 3925431 is about 1981.2700472172. The cubic root of 3925431 is about 157.7474869481.

It can be divided in two parts, 3925 and 431, that added together give a square (4356 = 66²).

The spelling of 3925431 in words is "three million, nine hundred twenty-five thousand, four hundred thirty-one".