97612987 has 2 divisors, whose sum is σ = 97612988. Its totient is φ = 97612986.

The previous prime is 97612979. The next prime is 97613027. The reversal of 97612987 is 78921679.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97612987 - 2³ = 97612979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97612987.

It is not a weakly prime, because it can be changed into another prime (97612687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48806493 + 48806494.

It is an arithmetic number, because the mean of its divisors is an integer number (48806494).

Almost surely, 2^97612987 is an apocalyptic number.

97612987 is a deficient number, since it is larger than the sum of its proper divisors (1).

97612987 is an equidigital number, since it uses as much as digits as its factorization.

97612987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 49.

The square root of 97612987 is about 9879.9284916441. The cubic root of 97612987 is about 460.4359241901.

The spelling of 97612987 in words is "ninety-seven million, six hundred twelve thousand, nine hundred eighty-seven".