3957423 has 8 divisors (see below), whose sum is σ = 5285808. Its totient is φ = 2633664.

The previous prime is 3957397. The next prime is 3957431. The reversal of 3957423 is 3247593.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3957423 - 2⁸ = 3957167 is a prime.

It is a super-2 number, since 2×3957423² = 31322393601858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957433) 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 7 ways as a sum of consecutive naturals, for example, 2461 + ... + 3737.

It is an arithmetic number, because the mean of its divisors is an integer number (660726).

Almost surely, 2^3957423 is an apocalyptic number.

3957423 is a deficient number, since it is larger than the sum of its proper divisors (1328385).

3957423 is a wasteful number, since it uses less digits than its factorization.

3957423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313.

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

The square root of 3957423 is about 1989.3272732258. The cubic root of 3957423 is about 158.1748718109.

The spelling of 3957423 in words is "three million, nine hundred fifty-seven thousand, four hundred twenty-three".