87705102 has 32 divisors (see below), whose sum is σ = 188582400. Its totient is φ = 27105408.

The previous prime is 87705097. The next prime is 87705103. The reversal of 87705102 is 20150778.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 87705102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87705103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2827 + ... + 13542.

It is an arithmetic number, because the mean of its divisors is an integer number (5893200).

Almost surely, 2^87705102 is an apocalyptic number.

87705102 is an abundant number, since it is smaller than the sum of its proper divisors (100877298).

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

87705102 is a wasteful number, since it uses less digits than its factorization.

87705102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16440.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 87705102 is about 9365.1002130250. The cubic root of 87705102 is about 444.2986080730.

The spelling of 87705102 in words is "eighty-seven million, seven hundred five thousand, one hundred two".