397450850 has 12 divisors (see below), whose sum is σ = 739258674. Its totient is φ = 158980320.

The previous prime is 397450813. The next prime is 397450861. The reversal of 397450850 is 58054793.

It can be written as a sum of positive squares in 3 ways, for example, as 198838201 + 198612649 = 14101^2 + 14093^2 .

It is a junction number, because it is equal to n+sod(n) for n = 397450798 and 397450807.

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, 3974459 + ... + 3974558.

Almost surely, 2^397450850 is an apocalyptic number.

397450850 is a deficient number, since it is larger than the sum of its proper divisors (341807824).

397450850 is a wasteful number, since it uses less digits than its factorization.

397450850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7949029 (or 7949024 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 397450850 is about 19936.1693913349. The cubic root of 397450850 is about 735.2377715003.

The spelling of 397450850 in words is "three hundred ninety-seven million, four hundred fifty thousand, eight hundred fifty".