397385697 has 8 divisors (see below), whose sum is σ = 552884544. Its totient is φ = 253405328.

The previous prime is 397385663. The next prime is 397385699. The reversal of 397385697 is 796583793.

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

It is a cyclic number.

It is not a de Polignac number, because 397385697 - 2⁶ = 397385633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397385699) 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, 2879538 + ... + 2879675.

It is an arithmetic number, because the mean of its divisors is an integer number (69110568).

Almost surely, 2^397385697 is an apocalyptic number.

It is an amenable number.

397385697 is a deficient number, since it is larger than the sum of its proper divisors (155498847).

397385697 is a wasteful number, since it uses less digits than its factorization.

397385697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759239.

The product of its digits is 8573040, while the sum is 57.

The square root of 397385697 is about 19934.5352842749. The cubic root of 397385697 is about 735.1975941515.

The spelling of 397385697 in words is "three hundred ninety-seven million, three hundred eighty-five thousand, six hundred ninety-seven".