87265479 has 16 divisors (see below), whose sum is σ = 134472960. Its totient is φ = 49304640.

The previous prime is 87265433. The next prime is 87265481. The reversal of 87265479 is 97456278.

It is not a de Polignac number, because 87265479 - 2¹⁶ = 87199943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87265579) 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, 21477 + ... + 25214.

It is an arithmetic number, because the mean of its divisors is an integer number (8404560).

Almost surely, 2^87265479 is an apocalyptic number.

87265479 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

87265479 is a deficient number, since it is larger than the sum of its proper divisors (47207481).

87265479 is a wasteful number, since it uses less digits than its factorization.

87265479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46790.

The product of its digits is 846720, while the sum is 48.

The square root of 87265479 is about 9341.5993812623. The cubic root of 87265479 is about 443.5550133489. Note that the first 3 decimals are identical.

The spelling of 87265479 in words is "eighty-seven million, two hundred sixty-five thousand, four hundred seventy-nine".