89631276 has 96 divisors (see below), whose sum is σ = 264176640. Its totient is φ = 23046144.

The previous prime is 89631239. The next prime is 89631313. The reversal of 89631276 is 67213698.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (89631239) and next prime (89631313).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31480 + ... + 34208.

It is an arithmetic number, because the mean of its divisors is an integer number (2751840).

Almost surely, 2^89631276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89631276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132088320).

89631276 is an abundant number, since it is smaller than the sum of its proper divisors (174545364).

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

89631276 is a wasteful number, since it uses less digits than its factorization.

89631276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783 (or 2781 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 89631276 is about 9467.3795740955. The cubic root of 89631276 is about 447.5276364235.

The spelling of 89631276 in words is "eighty-nine million, six hundred thirty-one thousand, two hundred seventy-six".