397712601 has 54 divisors (see below), whose sum is σ = 684071934. Its totient is φ = 222393600.

The previous prime is 397712597. The next prime is 397712621. The reversal of 397712601 is 106217793.

It is a happy number.

397712601 is a `hidden beast` number, since 39 + 7 + 7 + 12 + 601 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1742400 + 395970201 = 1320^2 + 19899^2 .

It is not a de Polignac number, because 397712601 - 2² = 397712597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397712621) 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 53 ways as a sum of consecutive naturals, for example, 182961 + ... + 185121.

Almost surely, 2^397712601 is an apocalyptic number.

It is an amenable number.

397712601 is a deficient number, since it is larger than the sum of its proper divisors (286359333).

397712601 is a wasteful number, since it uses less digits than its factorization.

397712601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215 (or 2188 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 397712601 is about 19942.7330373748. The cubic root of 397712601 is about 735.3991390337.

The spelling of 397712601 in words is "three hundred ninety-seven million, seven hundred twelve thousand, six hundred one".