97818087 has 16 divisors (see below), whose sum is σ = 133993440. Its totient is φ = 63436800.

The previous prime is 97818059. The next prime is 97818107. The reversal of 97818087 is 78081879.

It is not a de Polignac number, because 97818087 - 2⁷ = 97817959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97810087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50839 + ... + 52727.

It is an arithmetic number, because the mean of its divisors is an integer number (8374590).

Almost surely, 2^97818087 is an apocalyptic number.

97818087 is a deficient number, since it is larger than the sum of its proper divisors (36175353).

97818087 is a wasteful number, since it uses less digits than its factorization.

97818087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354.

The product of its (nonzero) digits is 225792, while the sum is 48.

The square root of 97818087 is about 9890.3026748427. The cubic root of 97818087 is about 460.7581809817.

The spelling of 97818087 in words is "ninety-seven million, eight hundred eighteen thousand, eighty-seven".