89673621 has 8 divisors (see below), whose sum is σ = 119636160. Its totient is φ = 59746752.

The previous prime is 89673613. The next prime is 89673637. The reversal of 89673621 is 12637698.

It is a happy number.

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

It is not a de Polignac number, because 89673621 - 2³ = 89673613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89674621) 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, 2361 + ... + 13598.

It is an arithmetic number, because the mean of its divisors is an integer number (14954520).

Almost surely, 2^89673621 is an apocalyptic number.

It is an amenable number.

89673621 is a deficient number, since it is larger than the sum of its proper divisors (29962539).

89673621 is a wasteful number, since it uses less digits than its factorization.

89673621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17835.

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

The square root of 89673621 is about 9469.6156732995. The cubic root of 89673621 is about 447.5981013144.

The spelling of 89673621 in words is "eighty-nine million, six hundred seventy-three thousand, six hundred twenty-one".