89726440 has 16 divisors (see below), whose sum is σ = 201884580. Its totient is φ = 35890560.

The previous prime is 89726437. The next prime is 89726449. The reversal of 89726440 is 4462798.

It can be written as a sum of positive squares in 2 ways, for example, as 87946884 + 1779556 = 9378^2 + 1334^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 2243161 = 89726440 / (8 + 9 + 7 + 2 + 6 + 4 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 89726393 and 89726402.

It is not an unprimeable number, because it can be changed into a prime (89726449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121541 + ... + 1121620.

Almost surely, 2^89726440 is an apocalyptic number.

It is an amenable number.

89726440 is an abundant number, since it is smaller than the sum of its proper divisors (112158140).

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

89726440 is a wasteful number, since it uses less digits than its factorization.

89726440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243172 (or 2243168 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 89726440 is about 9472.4041298923. The cubic root of 89726440 is about 447.6859645515.

The spelling of 89726440 in words is "eighty-nine million, seven hundred twenty-six thousand, four hundred forty".