87272451 has 32 divisors (see below), whose sum is σ = 148385280. Its totient is φ = 49660128.

The previous prime is 87272443. The next prime is 87272459. The reversal of 87272451 is 15427278.

It is an interprime number because it is at equal distance from previous prime (87272443) and next prime (87272459).

It is not a de Polignac number, because 87272451 - 2³ = 87272443 is a prime.

Its product of digits (31360) is a multiple of the sum of its prime factors (1960).

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

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51520 + ... + 53186.

It is an arithmetic number, because the mean of its divisors is an integer number (4637040).

Almost surely, 2^87272451 is an apocalyptic number.

87272451 is a deficient number, since it is larger than the sum of its proper divisors (61112829).

87272451 is a wasteful number, since it uses less digits than its factorization.

87272451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960 (or 1954 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 87272451 is about 9341.9725433123. The cubic root of 87272451 is about 443.5668255158.

The spelling of 87272451 in words is "eighty-seven million, two hundred seventy-two thousand, four hundred fifty-one".