87860225 has 6 divisors (see below), whose sum is σ = 108946710. Its totient is φ = 70288160.

The previous prime is 87860221. The next prime is 87860239. The reversal of 87860225 is 52206878.

It can be written as a sum of positive squares in 3 ways, for example, as 6355441 + 81504784 = 2521^2 + 9028^2 .

It is not a de Polignac number, because 87860225 - 2² = 87860221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87860221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1757180 + ... + 1757229.

It is an arithmetic number, because the mean of its divisors is an integer number (18157785).

Almost surely, 2^87860225 is an apocalyptic number.

It is an amenable number.

87860225 is a deficient number, since it is larger than the sum of its proper divisors (21086485).

87860225 is a wasteful number, since it uses less digits than its factorization.

87860225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514419 (or 3514414 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 87860225 is about 9373.3785264439. The cubic root of 87860225 is about 444.5603957306.

The spelling of 87860225 in words is "eighty-seven million, eight hundred sixty thousand, two hundred twenty-five".