397708123 has 8 divisors (see below), whose sum is σ = 401576688. Its totient is φ = 393853824.

The previous prime is 397708093. The next prime is 397708127. The reversal of 397708123 is 321807793.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397708123 is a prime.

It is a super-2 number, since 2×397708123² = 316343502200366258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397708127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57415 + ... + 63967.

It is an arithmetic number, because the mean of its divisors is an integer number (50197086).

Almost surely, 2^397708123 is an apocalyptic number.

397708123 is a deficient number, since it is larger than the sum of its proper divisors (3868565).

397708123 is a wasteful number, since it uses less digits than its factorization.

397708123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7133.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 397708123 is about 19942.6207655865. The cubic root of 397708123 is about 735.3963789756.

The spelling of 397708123 in words is "three hundred ninety-seven million, seven hundred eight thousand, one hundred twenty-three".