397422613 has 8 divisors (see below), whose sum is σ = 454336128. Its totient is φ = 340543824.

The previous prime is 397422593. The next prime is 397422629. The reversal of 397422613 is 316224793.

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 397422613 - 2²⁵ = 363868181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397422653) 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, 24120 + ... + 37102.

It is an arithmetic number, because the mean of its divisors is an integer number (56792016).

Almost surely, 2^397422613 is an apocalyptic number.

It is an amenable number.

397422613 is a deficient number, since it is larger than the sum of its proper divisors (56913515).

397422613 is a wasteful number, since it uses less digits than its factorization.

397422613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17363.

The product of its digits is 54432, while the sum is 37.

The square root of 397422613 is about 19935.4611935616. The cubic root of 397422613 is about 735.2203593678.

The spelling of 397422613 in words is "three hundred ninety-seven million, four hundred twenty-two thousand, six hundred thirteen".