97513389 has 20 divisors (see below), whose sum is σ = 149609724. Its totient is φ = 63249984.

The previous prime is 97513373. The next prime is 97513417. The reversal of 97513389 is 98331579.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 35497764 + 62015625 = 5958^2 + 7875^2 .

It is not a de Polignac number, because 97513389 - 2⁴ = 97513373 is a prime.

It is a super-2 number, since 2×97513389² = 19017722068530642, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97513349) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13272 + ... + 19265.

Almost surely, 2^97513389 is an apocalyptic number.

It is an amenable number.

97513389 is a deficient number, since it is larger than the sum of its proper divisors (52096335).

97513389 is a wasteful number, since it uses less digits than its factorization.

97513389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32586 (or 32577 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 97513389 is about 9874.8867841611. The cubic root of 97513389 is about 460.2792711857.

The spelling of 97513389 in words is "ninety-seven million, five hundred thirteen thousand, three hundred eighty-nine".