89467840 has 112 divisors (see below), whose sum is σ = 265688064. Its totient is φ = 27878400.

The previous prime is 89467831. The next prime is 89467841. The reversal of 89467840 is 4876498.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89467841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22825 + ... + 26455.

Almost surely, 2^89467840 is an apocalyptic number.

89467840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89467840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132844032).

89467840 is an abundant number, since it is smaller than the sum of its proper divisors (176220224).

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

89467840 is a wasteful number, since it uses less digits than its factorization.

89467840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666 (or 3656 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 89467840 is about 9458.7441026809. The cubic root of 89467840 is about 447.2554597475.

The spelling of 89467840 in words is "eighty-nine million, four hundred sixty-seven thousand, eight hundred forty".