397546850 has 12 divisors (see below), whose sum is σ = 739437234. Its totient is φ = 159018720.

The previous prime is 397546841. The next prime is 397546901. The reversal of 397546850 is 58645793.

It can be written as a sum of positive squares in 3 ways, for example, as 252079129 + 145467721 = 15877^2 + 12061^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 397546795 and 397546804.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3975419 + ... + 3975518.

Almost surely, 2^397546850 is an apocalyptic number.

397546850 is a deficient number, since it is larger than the sum of its proper divisors (341890384).

397546850 is a wasteful number, since it uses less digits than its factorization.

397546850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7950949 (or 7950944 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 397546850 is about 19938.5769301623. The cubic root of 397546850 is about 735.2969630070.

The spelling of 397546850 in words is "three hundred ninety-seven million, five hundred forty-six thousand, eight hundred fifty".