87605265 has 32 divisors (see below), whose sum is σ = 155520000. Its totient is φ = 41750720.

The previous prime is 87605261. The next prime is 87605291. The reversal of 87605265 is 56250678.

It is a happy number.

It is not a de Polignac number, because 87605265 - 2² = 87605261 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87605261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5236 + ... + 14234.

It is an arithmetic number, because the mean of its divisors is an integer number (4860000).

Almost surely, 2^87605265 is an apocalyptic number.

It is an amenable number.

87605265 is a deficient number, since it is larger than the sum of its proper divisors (67914735).

87605265 is a wasteful number, since it uses less digits than its factorization.

87605265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9077.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 87605265 is about 9359.7684266225. The cubic root of 87605265 is about 444.1299585081.

The spelling of 87605265 in words is "eighty-seven million, six hundred five thousand, two hundred sixty-five".