87464505 has 16 divisors (see below), whose sum is σ = 147309120. Its totient is φ = 44192448.

The previous prime is 87464501. The next prime is 87464513. The reversal of 87464505 is 50546478.

It is not a de Polignac number, because 87464505 - 2² = 87464501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87464501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153162 + ... + 153731.

It is an arithmetic number, because the mean of its divisors is an integer number (9206820).

Almost surely, 2^87464505 is an apocalyptic number.

It is an amenable number.

87464505 is a deficient number, since it is larger than the sum of its proper divisors (59844615).

87464505 is a wasteful number, since it uses less digits than its factorization.

87464505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306920.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 87464505 is about 9352.2459869274. The cubic root of 87464505 is about 443.8919619854.

The spelling of 87464505 in words is "eighty-seven million, four hundred sixty-four thousand, five hundred five".