397077923 has 8 divisors (see below), whose sum is σ = 436339440. Its totient is φ = 358343680.

The previous prime is 397077917. The next prime is 397077929. The reversal of 397077923 is 329770793.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (397077917) and next prime (397077929).

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-397077923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397077929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130238 + ... + 133251.

It is an arithmetic number, because the mean of its divisors is an integer number (54542430).

Almost surely, 2^397077923 is an apocalyptic number.

397077923 is a deficient number, since it is larger than the sum of its proper divisors (39261517).

397077923 is a wasteful number, since it uses less digits than its factorization.

397077923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263637.

The product of its (nonzero) digits is 500094, while the sum is 47.

The square root of 397077923 is about 19926.8141708603. The cubic root of 397077923 is about 735.0077423714.

The spelling of 397077923 in words is "three hundred ninety-seven million, seventy-seven thousand, nine hundred twenty-three".