3957432 has 16 divisors (see below), whose sum is σ = 9893640. Its totient is φ = 1319136.

The previous prime is 3957431. The next prime is 3957433. The reversal of 3957432 is 2347593.

It is a happy number.

3957432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3957431) and next prime (3957433).

It is a super-2 number, since 2×3957432² = 31322536069248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3957393 and 3957402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957431) 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, 82423 + ... + 82470.

Almost surely, 2^3957432 is an apocalyptic number.

It is an amenable number.

3957432 is an abundant number, since it is smaller than the sum of its proper divisors (5936208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3957432 is a wasteful number, since it uses less digits than its factorization.

3957432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164902 (or 164898 counting only the distinct ones).

The product of its digits is 22680, while the sum is 33.

The square root of 3957432 is about 1989.3295352957. The cubic root of 3957432 is about 158.1749917183.

The spelling of 3957432 in words is "three million, nine hundred fifty-seven thousand, four hundred thirty-two".