397326477 has 16 divisors (see below), whose sum is σ = 548591040. Its totient is φ = 255491712.

The previous prime is 397326469. The next prime is 397326487. The reversal of 397326477 is 774623793.

It is a happy number.

It is not a de Polignac number, because 397326477 - 2³ = 397326469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397326427) 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 15 ways as a sum of consecutive naturals, for example, 123078 + ... + 126264.

It is an arithmetic number, because the mean of its divisors is an integer number (34286940).

Almost surely, 2^397326477 is an apocalyptic number.

It is an amenable number.

397326477 is a deficient number, since it is larger than the sum of its proper divisors (151264563).

397326477 is a wasteful number, since it uses less digits than its factorization.

397326477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4652.

The product of its digits is 1333584, while the sum is 48.

The square root of 397326477 is about 19933.0498669923. The cubic root of 397326477 is about 735.1610716455.

The spelling of 397326477 in words is "three hundred ninety-seven million, three hundred twenty-six thousand, four hundred seventy-seven".