397692027 has 12 divisors (see below), whose sum is σ = 578830824. Its totient is φ = 263103360.

The previous prime is 397692023. The next prime is 397692041. The reversal of 397692027 is 720296793.

It is a happy number.

It is not a de Polignac number, because 397692027 - 2² = 397692023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397692023) 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 11 ways as a sum of consecutive naturals, for example, 167478 + ... + 169835.

It is an arithmetic number, because the mean of its divisors is an integer number (48235902).

Almost surely, 2^397692027 is an apocalyptic number.

397692027 is a deficient number, since it is larger than the sum of its proper divisors (181138797).

397692027 is a wasteful number, since it uses less digits than its factorization.

397692027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337450 (or 337447 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 397692027 is about 19942.2172037113. The cubic root of 397692027 is about 735.3864578809.

The spelling of 397692027 in words is "three hundred ninety-seven million, six hundred ninety-two thousand, twenty-seven".