99982587 has 18 divisors (see below), whose sum is σ = 139915636. Its totient is φ = 63503000.

The previous prime is 99982573. The next prime is 99982601. The reversal of 99982587 is 78528999.

It is an interprime number because it is at equal distance from previous prime (99982573) and next prime (99982601).

It is not a de Polignac number, because 99982587 - 2⁶ = 99982523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99982507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 398212 + ... + 398462.

Almost surely, 2^99982587 is an apocalyptic number.

99982587 is a deficient number, since it is larger than the sum of its proper divisors (39933049).

99982587 is an equidigital number, since it uses as much as digits as its factorization.

99982587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 277 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 57.

The square root of 99982587 is about 9999.1293120951. The cubic root of 99982587 is about 464.1319404686.

The spelling of 99982587 in words is "ninety-nine million, nine hundred eighty-two thousand, five hundred eighty-seven".