87056615 has 8 divisors (see below), whose sum is σ = 104584608. Its totient is φ = 69567520.

The previous prime is 87056573. The next prime is 87056617. The reversal of 87056615 is 51665078.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87056615 - 2¹⁴ = 87040231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87056617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4547 + ... + 13956.

It is an arithmetic number, because the mean of its divisors is an integer number (13073076).

Almost surely, 2^87056615 is an apocalyptic number.

87056615 is a deficient number, since it is larger than the sum of its proper divisors (17527993).

87056615 is a wasteful number, since it uses less digits than its factorization.

87056615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19449.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 87056615 is about 9330.4134420721. The cubic root of 87056615 is about 443.2008577113.

The spelling of 87056615 in words is "eighty-seven million, fifty-six thousand, six hundred fifteen".