89026921 has 4 divisors (see below), whose sum is σ = 91433092. Its totient is φ = 86620752.

The previous prime is 89026919. The next prime is 89026933. The reversal of 89026921 is 12962098.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76317696 + 12709225 = 8736^2 + 3565^2 .

It is a cyclic number.

It is not a de Polignac number, because 89026921 - 2¹ = 89026919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 2406133 = 89026921 / (8 + 9 + 0 + 2 + 6 + 9 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89026961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1203030 + ... + 1203103.

It is an arithmetic number, because the mean of its divisors is an integer number (22858273).

Almost surely, 2^89026921 is an apocalyptic number.

It is an amenable number.

89026921 is a deficient number, since it is larger than the sum of its proper divisors (2406171).

89026921 is a wasteful number, since it uses less digits than its factorization.

89026921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406170.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 89026921 is about 9435.4078343228. The cubic root of 89026921 is about 446.5195220250.

The spelling of 89026921 in words is "eighty-nine million, twenty-six thousand, nine hundred twenty-one".