89231901 has 32 divisors (see below), whose sum is σ = 134742528. Its totient is φ = 52050240.

The previous prime is 89231893. The next prime is 89231903. The reversal of 89231901 is 10913298.

It is not a de Polignac number, because 89231901 - 2³ = 89231893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89231903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130306 + ... + 130988.

It is an arithmetic number, because the mean of its divisors is an integer number (4210704).

Almost surely, 2^89231901 is an apocalyptic number.

It is an amenable number.

89231901 is a deficient number, since it is larger than the sum of its proper divisors (45510627).

89231901 is a wasteful number, since it uses less digits than its factorization.

89231901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 89231901 is about 9446.2638646186. The cubic root of 89231901 is about 446.8619555812.

The spelling of 89231901 in words is "eighty-nine million, two hundred thirty-one thousand, nine hundred one".