87450515 has 16 divisors (see below), whose sum is σ = 110350080. Its totient is φ = 66433920.

The previous prime is 87450511. The next prime is 87450523. The reversal of 87450515 is 51505478.

It is not a de Polignac number, because 87450515 - 2² = 87450511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87450511) 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, 3902 + ... + 13788.

It is an arithmetic number, because the mean of its divisors is an integer number (6896880).

Almost surely, 2^87450515 is an apocalyptic number.

87450515 is a deficient number, since it is larger than the sum of its proper divisors (22899565).

87450515 is a wasteful number, since it uses less digits than its factorization.

87450515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9982.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 87450515 is about 9351.4980083407. The cubic root of 87450515 is about 443.8682937950.

The spelling of 87450515 in words is "eighty-seven million, four hundred fifty thousand, five hundred fifteen".