88261865 has 4 divisors (see below), whose sum is σ = 105914244. Its totient is φ = 70609488.

The previous prime is 88261793. The next prime is 88261883. The reversal of 88261865 is 56816288.

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 37908649 + 50353216 = 6157^2 + 7096^2 .

It is a cyclic number.

It is not a de Polignac number, because 88261865 - 2¹² = 88257769 is a prime.

It is a Duffinian number.

It is a Curzon 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, 8826182 + ... + 8826191.

It is an arithmetic number, because the mean of its divisors is an integer number (26478561).

Almost surely, 2^88261865 is an apocalyptic number.

It is an amenable number.

88261865 is a deficient number, since it is larger than the sum of its proper divisors (17652379).

88261865 is a wasteful number, since it uses less digits than its factorization.

88261865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17652378.

The product of its digits is 184320, while the sum is 44.

The square root of 88261865 is about 9394.7786030326. The cubic root of 88261865 is about 445.2367801038.

The spelling of 88261865 in words is "eighty-eight million, two hundred sixty-one thousand, eight hundred sixty-five".