397290696100 has 27 divisors (see below), whose sum is σ = 862134488481. Its totient is φ = 158913757200.

The previous prime is 397290696079. The next prime is 397290696151. The reversal of 397290696100 is 1696092793.

The square root of 397290696100 is 630310.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 143024650596 + 254266045504 = 378186^2 + 504248^2 .

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 6271585 + ... + 6334615.

Almost surely, 2^397290696100 is an apocalyptic number.

397290696100 is the 630310-th square number.

It is an amenable number.

397290696100 is an abundant number, since it is smaller than the sum of its proper divisors (464843792381).

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

397290696100 is an frugal number, since it uses more digits than its factorization.

397290696100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126076 (or 63038 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 52.

The spelling of 397290696100 in words is "three hundred ninety-seven billion, two hundred ninety million, six hundred ninety-six thousand, one hundred".