89011621 has 8 divisors (see below), whose sum is σ = 89915904. Its totient is φ = 88111920.

The previous prime is 89011619. The next prime is 89011649. The reversal of 89011621 is 12611098.

It is a happy number.

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 89011621 - 2¹ = 89011619 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 89011621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89011721) 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, 47916 + ... + 49738.

It is an arithmetic number, because the mean of its divisors is an integer number (11239488).

Almost surely, 2^89011621 is an apocalyptic number.

It is an amenable number.

89011621 is a deficient number, since it is larger than the sum of its proper divisors (904283).

89011621 is a wasteful number, since it uses less digits than its factorization.

89011621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 89011621 is about 9434.5970237207. The cubic root of 89011621 is about 446.4939412231.

The spelling of 89011621 in words is "eighty-nine million, eleven thousand, six hundred twenty-one".