87999575 has 6 divisors (see below), whose sum is σ = 109119504. Its totient is φ = 70399640.

The previous prime is 87999563. The next prime is 87999577. The reversal of 87999575 is 57599978.

It is not a de Polignac number, because 87999575 - 2⁴ = 87999559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87999577) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1759967 + ... + 1760016.

It is an arithmetic number, because the mean of its divisors is an integer number (18186584).

Almost surely, 2^87999575 is an apocalyptic number.

87999575 is a deficient number, since it is larger than the sum of its proper divisors (21119929).

87999575 is a wasteful number, since it uses less digits than its factorization.

87999575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3519993 (or 3519988 counting only the distinct ones).

The product of its digits is 7144200, while the sum is 59.

The square root of 87999575 is about 9380.8088670434. The cubic root of 87999575 is about 444.7953020585.

The spelling of 87999575 in words is "eighty-seven million, nine hundred ninety-nine thousand, five hundred seventy-five".