397364505 has 16 divisors (see below), whose sum is σ = 650569920. Its totient is φ = 206998848.

The previous prime is 397364489. The next prime is 397364519. The reversal of 397364505 is 505463793.

It is not a de Polignac number, because 397364505 - 2⁴ = 397364489 is a prime.

It is an unprimeable number.

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, 307390 + ... + 308679.

It is an arithmetic number, because the mean of its divisors is an integer number (40660620).

Almost surely, 2^397364505 is an apocalyptic number.

It is an amenable number.

397364505 is a deficient number, since it is larger than the sum of its proper divisors (253205415).

397364505 is a wasteful number, since it uses less digits than its factorization.

397364505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616120.

The product of its (nonzero) digits is 340200, while the sum is 42.

The square root of 397364505 is about 19934.0037373328. The cubic root of 397364505 is about 735.1845249138.

The spelling of 397364505 in words is "three hundred ninety-seven million, three hundred sixty-four thousand, five hundred five".