87613672 has 8 divisors (see below), whose sum is σ = 164275650. Its totient is φ = 43806832.

The previous prime is 87613667. The next prime is 87613697. The reversal of 87613672 is 27631678.

It can be written as a sum of positive squares in only one way, i.e., 86601636 + 1012036 = 9306^2 + 1006^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5475847 + ... + 5475862.

Almost surely, 2^87613672 is an apocalyptic number.

It is an amenable number.

87613672 is a deficient number, since it is larger than the sum of its proper divisors (76661978).

87613672 is a wasteful number, since it uses less digits than its factorization.

87613672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10951715 (or 10951711 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 87613672 is about 9360.2175188400. The cubic root of 87613672 is about 444.1441649645.

The spelling of 87613672 in words is "eighty-seven million, six hundred thirteen thousand, six hundred seventy-two".