89455921 has 8 divisors (see below), whose sum is σ = 96132960. Its totient is φ = 82936128.

The previous prime is 89455913. The next prime is 89455937. The reversal of 89455921 is 12955498.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89455921 - 2³ = 89455913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89455321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38131 + ... + 40408.

It is an arithmetic number, because the mean of its divisors is an integer number (12016620).

Almost surely, 2^89455921 is an apocalyptic number.

It is an amenable number.

89455921 is a deficient number, since it is larger than the sum of its proper divisors (6677039).

89455921 is a wasteful number, since it uses less digits than its factorization.

89455921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78623.

The product of its digits is 129600, while the sum is 43.

The square root of 89455921 is about 9458.1140297630. The cubic root of 89455921 is about 447.2355975842.

The spelling of 89455921 in words is "eighty-nine million, four hundred fifty-five thousand, nine hundred twenty-one".