397263605 has 16 divisors (see below), whose sum is σ = 509068800. Its totient is φ = 296950080.

The previous prime is 397263589. The next prime is 397263611. The reversal of 397263605 is 506362793.

It is not a de Polignac number, because 397263605 - 2⁴ = 397263589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39695 + ... + 48684.

It is an arithmetic number, because the mean of its divisors is an integer number (31816800).

Almost surely, 2^397263605 is an apocalyptic number.

It is an amenable number.

397263605 is a deficient number, since it is larger than the sum of its proper divisors (111805195).

397263605 is a wasteful number, since it uses less digits than its factorization.

397263605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88444.

The product of its (nonzero) digits is 204120, while the sum is 41.

The square root of 397263605 is about 19931.4727253156. The cubic root of 397263605 is about 735.1222928849.

The spelling of 397263605 in words is "three hundred ninety-seven million, two hundred sixty-three thousand, six hundred five".