87272999 has 4 divisors (see below), whose sum is σ = 95206920. Its totient is φ = 79339080.

The previous prime is 87272903. The next prime is 87273007. The reversal of 87272999 is 99927278.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87272999 - 2²⁴ = 70495783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87272999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87272299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3966944 + ... + 3966965.

It is an arithmetic number, because the mean of its divisors is an integer number (23801730).

Almost surely, 2^87272999 is an apocalyptic number.

87272999 is a deficient number, since it is larger than the sum of its proper divisors (7933921).

87272999 is a wasteful number, since it uses less digits than its factorization.

87272999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7933920.

The product of its digits is 1143072, while the sum is 53.

The square root of 87272999 is about 9342.0018732604. The cubic root of 87272999 is about 443.5677539268.

The spelling of 87272999 in words is "eighty-seven million, two hundred seventy-two thousand, nine hundred ninety-nine".