87902245 has 8 divisors (see below), whose sum is σ = 105534360. Its totient is φ = 70287360.

The previous prime is 87902207. The next prime is 87902263. The reversal of 87902245 is 54220978.

It can be written as a sum of positive squares in 4 ways, for example, as 311364 + 87590881 = 558^2 + 9359^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-87902245 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14005 + ... + 19285.

It is an arithmetic number, because the mean of its divisors is an integer number (13191795).

Almost surely, 2^87902245 is an apocalyptic number.

It is an amenable number.

87902245 is a deficient number, since it is larger than the sum of its proper divisors (17632115).

87902245 is a wasteful number, since it uses less digits than its factorization.

87902245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8615.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 87902245 is about 9375.6197128510. The cubic root of 87902245 is about 444.6312562009.

The spelling of 87902245 in words is "eighty-seven million, nine hundred two thousand, two hundred forty-five".