89644971 has 8 divisors (see below), whose sum is σ = 128721040. Its totient is φ = 55166112.

The previous prime is 89644957. The next prime is 89644993. The reversal of 89644971 is 17944698.

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

It is not a de Polignac number, because 89644971 - 2⁵ = 89644939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89644971.

It is not an unprimeable number, because it can be changed into a prime (89644931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1149256 + ... + 1149333.

It is an arithmetic number, because the mean of its divisors is an integer number (16090130).

Almost surely, 2^89644971 is an apocalyptic number.

89644971 is a deficient number, since it is larger than the sum of its proper divisors (39076069).

89644971 is a wasteful number, since it uses less digits than its factorization.

89644971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298605.

The product of its digits is 435456, while the sum is 48.

The square root of 89644971 is about 9468.1028194671. The cubic root of 89644971 is about 447.5504282403.

The spelling of 89644971 in words is "eighty-nine million, six hundred forty-four thousand, nine hundred seventy-one".