87332515 has 4 divisors (see below), whose sum is σ = 104799024. Its totient is φ = 69866008.

The previous prime is 87332513. The next prime is 87332521. The reversal of 87332515 is 51523378.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51523378 = 2 ⋅25761689.

It is a cyclic number.

It is not a de Polignac number, because 87332515 - 2¹ = 87332513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87332513) 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 3 ways as a sum of consecutive naturals, for example, 8733247 + ... + 8733256.

It is an arithmetic number, because the mean of its divisors is an integer number (26199756).

Almost surely, 2^87332515 is an apocalyptic number.

87332515 is a deficient number, since it is larger than the sum of its proper divisors (17466509).

87332515 is a wasteful number, since it uses less digits than its factorization.

87332515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17466508.

The product of its digits is 25200, while the sum is 34.

The square root of 87332515 is about 9345.1867290065. The cubic root of 87332515 is about 443.6685616603.

The spelling of 87332515 in words is "eighty-seven million, three hundred thirty-two thousand, five hundred fifteen".