87601265 has 4 divisors (see below), whose sum is σ = 105121524. Its totient is φ = 70081008.

The previous prime is 87601249. The next prime is 87601301. The reversal of 87601265 is 56210678.

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

It can be written as a sum of positive squares in 2 ways, for example, as 47100769 + 40500496 = 6863^2 + 6364^2 .

It is a cyclic number.

It is not a de Polignac number, because 87601265 - 2⁴ = 87601249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8760122 + ... + 8760131.

It is an arithmetic number, because the mean of its divisors is an integer number (26280381).

Almost surely, 2^87601265 is an apocalyptic number.

It is an amenable number.

87601265 is a deficient number, since it is larger than the sum of its proper divisors (17520259).

87601265 is a wasteful number, since it uses less digits than its factorization.

87601265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17520258.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 87601265 is about 9359.5547436831. The cubic root of 87601265 is about 444.1231988426.

The spelling of 87601265 in words is "eighty-seven million, six hundred one thousand, two hundred sixty-five".