397714691 has 8 divisors (see below), whose sum is σ = 434035200. Its totient is φ = 361421640.

The previous prime is 397714673. The next prime is 397714721. The reversal of 397714691 is 196417793.

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 397714691 - 2⁶ = 397714627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397714991) 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, 34070 + ... + 44228.

It is an arithmetic number, because the mean of its divisors is an integer number (54254400).

Almost surely, 2^397714691 is an apocalyptic number.

397714691 is a deficient number, since it is larger than the sum of its proper divisors (36320509).

397714691 is a wasteful number, since it uses less digits than its factorization.

397714691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13729.

The product of its digits is 285768, while the sum is 47.

The square root of 397714691 is about 19942.7854373455. The cubic root of 397714691 is about 735.4004272182.

The spelling of 397714691 in words is "three hundred ninety-seven million, seven hundred fourteen thousand, six hundred ninety-one".