89776440 has 96 divisors (see below), whose sum is σ = 314233920. Its totient is φ = 22097664.

The previous prime is 89776397. The next prime is 89776441. The reversal of 89776440 is 4467798.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89776441) 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 23 ways as a sum of consecutive naturals, for example, 4912 + ... + 14271.

It is an arithmetic number, because the mean of its divisors is an integer number (3273270).

Almost surely, 2^89776440 is an apocalyptic number.

It is an amenable number.

89776440 is an abundant number, since it is smaller than the sum of its proper divisors (224457480).

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

89776440 is a wasteful number, since it uses less digits than its factorization.

89776440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19213 (or 19206 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 89776440 is about 9475.0430078180. The cubic root of 89776440 is about 447.7691066801.

The spelling of 89776440 in words is "eighty-nine million, seven hundred seventy-six thousand, four hundred forty".