89278668 has 18 divisors (see below), whose sum is σ = 225676724. Its totient is φ = 29759544.

The previous prime is 89278661. The next prime is 89278681. The reversal of 89278668 is 86687298.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (89278661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1239946 + ... + 1240017.

Almost surely, 2^89278668 is an apocalyptic number.

It is an amenable number.

89278668 is an abundant number, since it is smaller than the sum of its proper divisors (136398056).

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

89278668 is a wasteful number, since it uses less digits than its factorization.

89278668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479973 (or 2479968 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 89278668 is about 9448.7389634808. The cubic root of 89278668 is about 446.9400096662.

The spelling of 89278668 in words is "eighty-nine million, two hundred seventy-eight thousand, six hundred sixty-eight".