97136087 has 4 divisors (see below), whose sum is σ = 97155816. Its totient is φ = 97116360.

The previous prime is 97136041. The next prime is 97136099. The reversal of 97136087 is 78063179.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97136087 - 2¹⁶ = 97070551 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 (97136027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4328 + ... + 14594.

It is an arithmetic number, because the mean of its divisors is an integer number (24288954).

Almost surely, 2^97136087 is an apocalyptic number.

97136087 is a deficient number, since it is larger than the sum of its proper divisors (19729).

97136087 is a wasteful number, since it uses less digits than its factorization.

97136087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19728.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 97136087 is about 9855.7641509931. The cubic root of 97136087 is about 459.6848613425.

The spelling of 97136087 in words is "ninety-seven million, one hundred thirty-six thousand, eighty-seven".