84972599 has 2 divisors, whose sum is σ = 84972600. Its totient is φ = 84972598.

The previous prime is 84972593. The next prime is 84972607. The reversal of 84972599 is 99527948.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84972599 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84972599.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84972593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42486299 + 42486300.

It is an arithmetic number, because the mean of its divisors is an integer number (42486300).

Almost surely, 2^84972599 is an apocalyptic number.

84972599 is a deficient number, since it is larger than the sum of its proper divisors (1).

84972599 is an equidigital number, since it uses as much as digits as its factorization.

84972599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 53.

The square root of 84972599 is about 9218.0583096442. The cubic root of 84972599 is about 439.6357160479.

The spelling of 84972599 in words is "eighty-four million, nine hundred seventy-two thousand, five hundred ninety-nine".