99987024 has 40 divisors (see below), whose sum is σ = 265285600. Its totient is φ = 32427648.

The previous prime is 99987011. The next prime is 99987037. The reversal of 99987024 is 42078999.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99987011) and next prime (99987037).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26374 + ... + 29925.

It is an arithmetic number, because the mean of its divisors is an integer number (6632140).

Almost surely, 2^99987024 is an apocalyptic number.

It is an amenable number.

99987024 is an abundant number, since it is smaller than the sum of its proper divisors (165298576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99987024 is a wasteful number, since it uses less digits than its factorization.

99987024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56347 (or 56341 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 99987024 is about 9999.3511789516. The cubic root of 99987024 is about 464.1388060739.

It can be divided in two parts, 999 and 87024, that multiplied together give a square (86936976 = 9324²).

The spelling of 99987024 in words is "ninety-nine million, nine hundred eighty-seven thousand, twenty-four".