87902 has 4 divisors (see below), whose sum is σ = 131856. Its totient is φ = 43950.

The previous prime is 87887. The next prime is 87911. The reversal of 87902 is 20978.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

87902 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21974 + ... + 21977.

It is an arithmetic number, because the mean of its divisors is an integer number (32964).

2⁸⁷⁹⁰² is an apocalyptic number.

87902 is a deficient number, since it is larger than the sum of its proper divisors (43954).

87902 is a wasteful number, since it uses less digits than its factorization.

87902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43953.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 87902 is about 296.4827145046. The cubic root of 87902 is about 44.4630843110.

It can be divided in two parts, 87 and 902, that added together give a palindrome (989).

The spelling of 87902 in words is "eighty-seven thousand, nine hundred two".