87326715 has 16 divisors (see below), whose sum is σ = 159683328. Its totient is φ = 39920736.

The previous prime is 87326713. The next prime is 87326741. The reversal of 87326715 is 51762378.

It is not a de Polignac number, because 87326715 - 2¹ = 87326713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87326713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415737 + ... + 415946.

It is an arithmetic number, because the mean of its divisors is an integer number (9980208).

Almost surely, 2^87326715 is an apocalyptic number.

87326715 is a deficient number, since it is larger than the sum of its proper divisors (72356613).

87326715 is a wasteful number, since it uses less digits than its factorization.

87326715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831698.

The product of its digits is 70560, while the sum is 39.

The square root of 87326715 is about 9344.8764036770. The cubic root of 87326715 is about 443.6587396804.

The spelling of 87326715 in words is "eighty-seven million, three hundred twenty-six thousand, seven hundred fifteen".