87272365 has 4 divisors (see below), whose sum is σ = 104726844. Its totient is φ = 69817888.

The previous prime is 87272359. The next prime is 87272399. The reversal of 87272365 is 56327278.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63584676 + 23687689 = 7974^2 + 4867^2 .

It is a cyclic number.

It is not a de Polignac number, because 87272365 - 2⁵ = 87272333 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8727232 + ... + 8727241.

It is an arithmetic number, because the mean of its divisors is an integer number (26181711).

Almost surely, 2^87272365 is an apocalyptic number.

It is an amenable number.

87272365 is a deficient number, since it is larger than the sum of its proper divisors (17454479).

87272365 is a wasteful number, since it uses less digits than its factorization.

87272365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17454478.

The product of its digits is 141120, while the sum is 40.

The square root of 87272365 is about 9341.9679404288. The cubic root of 87272365 is about 443.5666798159.

It can be divided in two parts, 872 and 72365, that added together give a palindrome (73237).

The spelling of 87272365 in words is "eighty-seven million, two hundred seventy-two thousand, three hundred sixty-five".