89010421 has 4 divisors (see below), whose sum is σ = 93695200. Its totient is φ = 84325644.

The previous prime is 89010353. The next prime is 89010431. The reversal of 89010421 is 12401098.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12401098 = 2 ⋅6200549.

It is a cyclic number.

It is not a de Polignac number, because 89010421 - 2⁷ = 89010293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89010431) 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, 2342361 + ... + 2342398.

It is an arithmetic number, because the mean of its divisors is an integer number (23423800).

Almost surely, 2^89010421 is an apocalyptic number.

It is an amenable number.

89010421 is a deficient number, since it is larger than the sum of its proper divisors (4684779).

89010421 is a wasteful number, since it uses less digits than its factorization.

89010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4684778.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 89010421 is about 9434.5334277854. The cubic root of 89010421 is about 446.4919347618.

It can be divided in two parts, 890 and 10421, that added together give a palindrome (11311).

The spelling of 89010421 in words is "eighty-nine million, ten thousand, four hundred twenty-one".