97947380 has 18 divisors (see below), whose sum is σ = 205782486. Its totient is φ = 39161248.

The previous prime is 97947373. The next prime is 97947391. The reversal of 97947380 is 8374979.

It can be written as a sum of positive squares in 3 ways, for example, as 71301136 + 26646244 = 8444^2 + 5162^2 .

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, 43154 + ... + 45366.

Almost surely, 2^97947380 is an apocalyptic number.

It is an amenable number.

97947380 is an abundant number, since it is smaller than the sum of its proper divisors (107835106).

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

97947380 is an equidigital number, since it uses as much as digits as its factorization.

97947380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4435 (or 2220 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 97947380 is about 9896.8368684141. The cubic root of 97947380 is about 460.9610970319.

The spelling of 97947380 in words is "ninety-seven million, nine hundred forty-seven thousand, three hundred eighty".