87538655 has 8 divisors (see below), whose sum is σ = 105224784. Its totient is φ = 69912000.

The previous prime is 87538651. The next prime is 87538673. The reversal of 87538655 is 55683578.

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

It is not a de Polignac number, because 87538655 - 2² = 87538651 is a prime.

It is a super-2 number, since 2×87538655² = 15326032238418050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87538651) 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, 11561 + ... + 17570.

It is an arithmetic number, because the mean of its divisors is an integer number (13153098).

Almost surely, 2^87538655 is an apocalyptic number.

87538655 is a deficient number, since it is larger than the sum of its proper divisors (17686129).

87538655 is a wasteful number, since it uses less digits than its factorization.

87538655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29737.

The product of its digits is 1008000, while the sum is 47.

The square root of 87538655 is about 9356.2094354498. The cubic root of 87538655 is about 444.0173663499.

The spelling of 87538655 in words is "eighty-seven million, five hundred thirty-eight thousand, six hundred fifty-five".