88778664 has 48 divisors (see below), whose sum is σ = 258940500. Its totient is φ = 27316224.

The previous prime is 88778663. The next prime is 88778671. The reversal of 88778664 is 46687788.

It can be written as a sum of positive squares in 2 ways, for example, as 69856164 + 18922500 = 8358^2 + 4350^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 88778664.

It is not an unprimeable number, because it can be changed into a prime (88778663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46489 + ... + 48360.

Almost surely, 2^88778664 is an apocalyptic number.

It is an amenable number.

88778664 is an abundant number, since it is smaller than the sum of its proper divisors (170161836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88778664 is a wasteful number, since it uses less digits than its factorization.

88778664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94874 (or 94867 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 54.

The square root of 88778664 is about 9422.2430450504. The cubic root of 88778664 is about 446.1040866546.

The spelling of 88778664 in words is "eighty-eight million, seven hundred seventy-eight thousand, six hundred sixty-four".