87626616 has 64 divisors (see below), whose sum is σ = 273127680. Its totient is φ = 22759680.

The previous prime is 87626597. The next prime is 87626629. The reversal of 87626616 is 61662678.

It is a happy number.

It is a super-2 number, since 2×87626616² = 15356847663222912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21861 + ... + 25556.

It is an arithmetic number, because the mean of its divisors is an integer number (4267620).

Almost surely, 2^87626616 is an apocalyptic number.

It is an amenable number.

87626616 is an abundant number, since it is smaller than the sum of its proper divisors (185501064).

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

87626616 is a wasteful number, since it uses less digits than its factorization.

87626616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47444 (or 47440 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 87626616 is about 9360.9089302268. The cubic root of 87626616 is about 444.1660364329.

The spelling of 87626616 in words is "eighty-seven million, six hundred twenty-six thousand, six hundred sixteen".