97124987 has 2 divisors, whose sum is σ = 97124988. Its totient is φ = 97124986.

The previous prime is 97124981. The next prime is 97125011. The reversal of 97124987 is 78942179.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97124987 - 2⁴ = 97124971 is a prime.

It is not a weakly prime, because it can be changed into another prime (97124981) 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 as a sum of consecutive naturals, namely, 48562493 + 48562494.

It is an arithmetic number, because the mean of its divisors is an integer number (48562494).

Almost surely, 2^97124987 is an apocalyptic number.

97124987 is a deficient number, since it is larger than the sum of its proper divisors (1).

97124987 is an equidigital number, since it uses as much as digits as its factorization.

97124987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 47.

The square root of 97124987 is about 9855.2010126633. The cubic root of 97124987 is about 459.6673508700.

The spelling of 97124987 in words is "ninety-seven million, one hundred twenty-four thousand, nine hundred eighty-seven".