87001015 has 16 divisors (see below), whose sum is σ = 109317600. Its totient is φ = 66381952.

The previous prime is 87001003. The next prime is 87001021. The reversal of 87001015 is 51010078.

It is a cyclic number.

It is not a de Polignac number, because 87001015 - 2⁵ = 87000983 is a prime.

It is a super-2 number, since 2×87001015² = 15138353222060450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8421 + ... + 15649.

It is an arithmetic number, because the mean of its divisors is an integer number (6832350).

Almost surely, 2^87001015 is an apocalyptic number.

87001015 is a deficient number, since it is larger than the sum of its proper divisors (22316585).

87001015 is a wasteful number, since it uses less digits than its factorization.

87001015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7346.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 87001015 is about 9327.4334626413. The cubic root of 87001015 is about 443.1064853478.

The spelling of 87001015 in words is "eighty-seven million, one thousand, fifteen".