87570616 has 32 divisors (see below), whose sum is σ = 188281440. Its totient is φ = 37404288.

The previous prime is 87570611. The next prime is 87570617. The reversal of 87570616 is 61607578.

It is a super-2 number, since 2×87570616² = 15337225573238912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87570611) 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, 15286 + ... + 20218.

It is an arithmetic number, because the mean of its divisors is an integer number (5883795).

Almost surely, 2^87570616 is an apocalyptic number.

It is an amenable number.

87570616 is an abundant number, since it is smaller than the sum of its proper divisors (100710824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87570616 is a wasteful number, since it uses less digits than its factorization.

87570616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5263 (or 5259 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 87570616 is about 9357.9172896537. The cubic root of 87570616 is about 444.0713977653.

The spelling of 87570616 in words is "eighty-seven million, five hundred seventy thousand, six hundred sixteen".