88784865 has 24 divisors (see below), whose sum is σ = 165732840. Its totient is φ = 43709184.

The previous prime is 88784831. The next prime is 88784869. The reversal of 88784865 is 56848788.

It can be written as a sum of positive squares in 4 ways, for example, as 15374241 + 73410624 = 3921^2 + 8568^2 .

It is not a de Polignac number, because 88784865 - 2⁸ = 88784609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (88784869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75300 + ... + 76469.

It is an arithmetic number, because the mean of its divisors is an integer number (6905535).

Almost surely, 2^88784865 is an apocalyptic number.

It is an amenable number.

88784865 is a deficient number, since it is larger than the sum of its proper divisors (76947975).

88784865 is a wasteful number, since it uses less digits than its factorization.

88784865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151793 (or 151790 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 54.

The square root of 88784865 is about 9422.5721010773. The cubic root of 88784865 is about 446.1144728852.

The spelling of 88784865 in words is "eighty-eight million, seven hundred eighty-four thousand, eight hundred sixty-five".