89748091 has 4 divisors (see below), whose sum is σ = 89803912. Its totient is φ = 89692272.

The previous prime is 89748079. The next prime is 89748101. The reversal of 89748091 is 19084798.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89748091 - 2⁵ = 89748059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89748031) 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, 25425 + ... + 28738.

It is an arithmetic number, because the mean of its divisors is an integer number (22450978).

Almost surely, 2^89748091 is an apocalyptic number.

89748091 is a deficient number, since it is larger than the sum of its proper divisors (55821).

89748091 is a wasteful number, since it uses less digits than its factorization.

89748091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55820.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 89748091 is about 9473.5469070460. The cubic root of 89748091 is about 447.7219705467.

The spelling of 89748091 in words is "eighty-nine million, seven hundred forty-eight thousand, ninety-one".