397375535 has 16 divisors (see below), whose sum is σ = 483138432. Its totient is φ = 313728000.

The previous prime is 397375529. The next prime is 397375541. The reversal of 397375535 is 535573793.

It is an interprime number because it is at equal distance from previous prime (397375529) and next prime (397375541).

It is a de Polignac number, because none of the positive numbers 2^k-397375535 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397375535.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208085 + ... + 209985.

It is an arithmetic number, because the mean of its divisors is an integer number (30196152).

Almost surely, 2^397375535 is an apocalyptic number.

397375535 is a deficient number, since it is larger than the sum of its proper divisors (85762897).

397375535 is a wasteful number, since it uses less digits than its factorization.

397375535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434.

The product of its digits is 1488375, while the sum is 47.

The square root of 397375535 is about 19934.2803983490. The cubic root of 397375535 is about 735.1913272411.

The spelling of 397375535 in words is "three hundred ninety-seven million, three hundred seventy-five thousand, five hundred thirty-five".