87101892 has 36 divisors (see below), whose sum is σ = 228331376. Its totient is φ = 29033640.

The previous prime is 87101849. The next prime is 87101899. The reversal of 87101892 is 29810178.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (87101899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43834 + ... + 45777.

Almost surely, 2^87101892 is an apocalyptic number.

It is an amenable number.

87101892 is an abundant number, since it is smaller than the sum of its proper divisors (141229484).

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

87101892 is a wasteful number, since it uses less digits than its factorization.

87101892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89630 (or 89616 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 87101892 is about 9332.8394393132. The cubic root of 87101892 is about 443.2776787065.

The spelling of 87101892 in words is "eighty-seven million, one hundred one thousand, eight hundred ninety-two".