397631350 has 12 divisors (see below), whose sum is σ = 739594404. Its totient is φ = 159052520.

The previous prime is 397631303. The next prime is 397631369. The reversal of 397631350 is 53136793.

It is a happy number.

It is a super-2 number, since 2×397631350² = 316221381005645000, which contains 22 as substring.

It is a congruent number.

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, 3976264 + ... + 3976363.

It is an arithmetic number, because the mean of its divisors is an integer number (61632867).

Almost surely, 2^397631350 is an apocalyptic number.

397631350 is a deficient number, since it is larger than the sum of its proper divisors (341963054).

397631350 is a wasteful number, since it uses less digits than its factorization.

397631350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7952639 (or 7952634 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 37.

The square root of 397631350 is about 19940.6958253718. The cubic root of 397631350 is about 735.3490559798.

The spelling of 397631350 in words is "three hundred ninety-seven million, six hundred thirty-one thousand, three hundred fifty".