97587997 has 16 divisors (see below), whose sum is σ = 107251200. Its totient is φ = 88252992.

The previous prime is 97587961. The next prime is 97588003. The reversal of 97587997 is 79978579.

It is a cyclic number.

It is not a de Polignac number, because 97587997 - 2¹⁹ = 97063709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97507997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160468 + ... + 161074.

It is an arithmetic number, because the mean of its divisors is an integer number (6703200).

Almost surely, 2^97587997 is an apocalyptic number.

It is an amenable number.

97587997 is a deficient number, since it is larger than the sum of its proper divisors (9663203).

97587997 is a wasteful number, since it uses less digits than its factorization.

97587997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852.

The product of its digits is 10001880, while the sum is 61.

The square root of 97587997 is about 9878.6637254236. The cubic root of 97587997 is about 460.3966286136.

The spelling of 97587997 in words is "ninety-seven million, five hundred eighty-seven thousand, nine hundred ninety-seven".