89493680 has 40 divisors (see below), whose sum is σ = 212008752. Its totient is φ = 35120384.

The previous prime is 89493653. The next prime is 89493689. The reversal of 89493680 is 8639498.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (89493689) 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 7 ways as a sum of consecutive naturals, for example, 6314 + ... + 14793.

Almost surely, 2^89493680 is an apocalyptic number.

89493680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89493680 is an abundant number, since it is smaller than the sum of its proper divisors (122515072).

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

89493680 is a wasteful number, since it uses less digits than its factorization.

89493680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21173 (or 21167 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 89493680 is about 9460.1099359363. The cubic root of 89493680 is about 447.2985142076.

The spelling of 89493680 in words is "eighty-nine million, four hundred ninety-three thousand, six hundred eighty".