89379921 has 8 divisors (see below), whose sum is σ = 119217280. Its totient is φ = 59564592.

The previous prime is 89379907. The next prime is 89379937. The reversal of 89379921 is 12997398.

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

It is not a de Polignac number, because 89379921 - 2⁷ = 89379793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89379991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11235 + ... + 17463.

It is an arithmetic number, because the mean of its divisors is an integer number (14902160).

Almost surely, 2^89379921 is an apocalyptic number.

It is an amenable number.

89379921 is a deficient number, since it is larger than the sum of its proper divisors (29837359).

89379921 is a wasteful number, since it uses less digits than its factorization.

89379921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11015.

The product of its digits is 244944, while the sum is 48.

The square root of 89379921 is about 9454.0954617562. The cubic root of 89379921 is about 447.1089074955.

The spelling of 89379921 in words is "eighty-nine million, three hundred seventy-nine thousand, nine hundred twenty-one".