97610987 has 2 divisors, whose sum is σ = 97610988. Its totient is φ = 97610986.

The previous prime is 97610983. The next prime is 97611043. The reversal of 97610987 is 78901679.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97610987 - 2² = 97610983 is a prime.

It is a super-2 number, since 2×97610987² = 19055809566228338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97610983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48805493 + 48805494.

It is an arithmetic number, because the mean of its divisors is an integer number (48805494).

Almost surely, 2^97610987 is an apocalyptic number.

97610987 is a deficient number, since it is larger than the sum of its proper divisors (1).

97610987 is an equidigital number, since it uses as much as digits as its factorization.

97610987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 97610987 is about 9879.8272758181. The cubic root of 97610987 is about 460.4327795330.

The spelling of 97610987 in words is "ninety-seven million, six hundred ten thousand, nine hundred eighty-seven".