397063775 has 12 divisors (see below), whose sum is σ = 499709832. Its totient is φ = 312908640.

The previous prime is 397063769. The next prime is 397063801. The reversal of 397063775 is 577360793.

It is not a de Polignac number, because 397063775 - 2⁴ = 397063759 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 116852 + ... + 120201.

It is an arithmetic number, because the mean of its divisors is an integer number (41642486).

Almost surely, 2^397063775 is an apocalyptic number.

397063775 is a deficient number, since it is larger than the sum of its proper divisors (102646057).

397063775 is a wasteful number, since it uses less digits than its factorization.

397063775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237130 (or 237125 counting only the distinct ones).

The product of its (nonzero) digits is 833490, while the sum is 47.

The square root of 397063775 is about 19926.4591686531. The cubic root of 397063775 is about 734.9990127557. Note that the first 3 decimals are identical.

The spelling of 397063775 in words is "three hundred ninety-seven million, sixty-three thousand, seven hundred seventy-five".