89825231 has 4 divisors (see below), whose sum is σ = 89916864. Its totient is φ = 89733600.

The previous prime is 89825227. The next prime is 89825249. The reversal of 89825231 is 13252898.

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

It is a cyclic number.

It is not a de Polignac number, because 89825231 - 2² = 89825227 is a prime.

It is a super-2 number, since 2×89825231² = 16137144248406722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89825221) 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, 44330 + ... + 46311.

It is an arithmetic number, because the mean of its divisors is an integer number (22479216).

Almost surely, 2^89825231 is an apocalyptic number.

89825231 is a deficient number, since it is larger than the sum of its proper divisors (91633).

89825231 is an equidigital number, since it uses as much as digits as its factorization.

89825231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91632.

The product of its digits is 34560, while the sum is 38.

The square root of 89825231 is about 9477.6173693603. The cubic root of 89825231 is about 447.8502086779.

The spelling of 89825231 in words is "eighty-nine million, eight hundred twenty-five thousand, two hundred thirty-one".