87504451 has 2 divisors, whose sum is σ = 87504452. Its totient is φ = 87504450.

The previous prime is 87504419. The next prime is 87504497. The reversal of 87504451 is 15440578.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87504451 - 2⁵ = 87504419 is a prime.

It is a super-2 number, since 2×87504451² = 15314057889622802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87504551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43752225 + 43752226.

It is an arithmetic number, because the mean of its divisors is an integer number (43752226).

Almost surely, 2^87504451 is an apocalyptic number.

87504451 is a deficient number, since it is larger than the sum of its proper divisors (1).

87504451 is an equidigital number, since it uses as much as digits as its factorization.

87504451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 87504451 is about 9354.3813798669. The cubic root of 87504451 is about 443.9595284784.

The spelling of 87504451 in words is "eighty-seven million, five hundred four thousand, four hundred fifty-one".