87272455 has 16 divisors (see below), whose sum is σ = 111273120. Its totient is φ = 65584512.

The previous prime is 87272443. The next prime is 87272459. The reversal of 87272455 is 55427278.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87272455 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87272459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2769 + ... + 13498.

It is an arithmetic number, because the mean of its divisors is an integer number (6954570).

Almost surely, 2^87272455 is an apocalyptic number.

87272455 is a deficient number, since it is larger than the sum of its proper divisors (24000665).

87272455 is a wasteful number, since it uses less digits than its factorization.

87272455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16338.

The product of its digits is 156800, while the sum is 40.

The square root of 87272455 is about 9341.9727573998. The cubic root of 87272455 is about 443.5668322925.

The spelling of 87272455 in words is "eighty-seven million, two hundred seventy-two thousand, four hundred fifty-five".