97581498 has 16 divisors (see below), whose sum is σ = 223043520. Its totient is φ = 27880416.

The previous prime is 97581493. The next prime is 97581499. The reversal of 97581498 is 89418579.

It is a self number, because there is not a number n which added to its sum of digits gives 97581498.

It is not an unprimeable number, because it can be changed into a prime (97581493) 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, 1161643 + ... + 1161726.

It is an arithmetic number, because the mean of its divisors is an integer number (13940220).

Almost surely, 2^97581498 is an apocalyptic number.

97581498 is an abundant number, since it is smaller than the sum of its proper divisors (125462022).

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

97581498 is a wasteful number, since it uses less digits than its factorization.

97581498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323381.

The product of its digits is 725760, while the sum is 51.

The square root of 97581498 is about 9878.3347786963. The cubic root of 97581498 is about 460.3864081487.

The spelling of 97581498 in words is "ninety-seven million, five hundred eighty-one thousand, four hundred ninety-eight".