3957290123 has 4 divisors (see below), whose sum is σ = 3971373288. Its totient is φ = 3943206960.

The previous prime is 3957290101. The next prime is 3957290137. The reversal of 3957290123 is 3210927593.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3957290123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3957290173) 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, 7041161 + ... + 7041722.

It is an arithmetic number, because the mean of its divisors is an integer number (992843322).

Almost surely, 2^3957290123 is an apocalyptic number.

3957290123 is a deficient number, since it is larger than the sum of its proper divisors (14083165).

3957290123 is a wasteful number, since it uses less digits than its factorization.

3957290123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14083164.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 3957290123 is about 62906.9958192251. The cubic root of 3957290123 is about 1581.7310146373.

The spelling of 3957290123 in words is "three billion, nine hundred fifty-seven million, two hundred ninety thousand, one hundred twenty-three".