89825409 has 16 divisors (see below), whose sum is σ = 136171200. Its totient is φ = 58490208.

The previous prime is 89825387. The next prime is 89825423. The reversal of 89825409 is 90452898.

It is not a de Polignac number, because 89825409 - 2⁵ = 89825377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89825429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37524 + ... + 39845.

It is an arithmetic number, because the mean of its divisors is an integer number (8510700).

Almost surely, 2^89825409 is an apocalyptic number.

It is an amenable number.

89825409 is a deficient number, since it is larger than the sum of its proper divisors (46345791).

89825409 is a wasteful number, since it uses less digits than its factorization.

89825409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77421 (or 77415 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 89825409 is about 9477.6267599014. The cubic root of 89825409 is about 447.8505045015.

The spelling of 89825409 in words is "eighty-nine million, eight hundred twenty-five thousand, four hundred nine".