397627734 has 16 divisors (see below), whose sum is σ = 908863488. Its totient is φ = 113607912.

The previous prime is 397627733. The next prime is 397627753. The reversal of 397627734 is 437726793.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397627733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4733622 + ... + 4733705.

It is an arithmetic number, because the mean of its divisors is an integer number (56803968).

Almost surely, 2^397627734 is an apocalyptic number.

397627734 is an abundant number, since it is smaller than the sum of its proper divisors (511235754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397627734 is a wasteful number, since it uses less digits than its factorization.

397627734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9467339.

The product of its digits is 1333584, while the sum is 48.

The square root of 397627734 is about 19940.6051563136. The cubic root of 397627734 is about 735.3468269216.

The spelling of 397627734 in words is "three hundred ninety-seven million, six hundred twenty-seven thousand, seven hundred thirty-four".