99964587 has 8 divisors (see below), whose sum is σ = 133335360. Its totient is φ = 66618440.

The previous prime is 99964577. The next prime is 99964589. The reversal of 99964587 is 78546999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99964587 - 2⁶ = 99964523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99964589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7912 + ... + 16202.

It is an arithmetic number, because the mean of its divisors is an integer number (16666920).

Almost surely, 2^99964587 is an apocalyptic number.

99964587 is a deficient number, since it is larger than the sum of its proper divisors (33370773).

99964587 is a wasteful number, since it uses less digits than its factorization.

99964587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12313.

The product of its digits is 4898880, while the sum is 57.

The square root of 99964587 is about 9998.2291932122. The cubic root of 99964587 is about 464.1040860305.

The spelling of 99964587 in words is "ninety-nine million, nine hundred sixty-four thousand, five hundred eighty-seven".