89409025 has 6 divisors (see below), whose sum is σ = 110867222. Its totient is φ = 71527200.

The previous prime is 89409007. The next prime is 89409029. The reversal of 89409025 is 52090498.

It can be written as a sum of positive squares in 3 ways, for example, as 163216 + 89245809 = 404^2 + 9447^2 .

It is not a de Polignac number, because 89409025 - 2¹⁵ = 89376257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89409029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1788156 + ... + 1788205.

Almost surely, 2^89409025 is an apocalyptic number.

It is an amenable number.

89409025 is a deficient number, since it is larger than the sum of its proper divisors (21458197).

89409025 is a wasteful number, since it uses less digits than its factorization.

89409025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3576371 (or 3576366 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 89409025 is about 9455.6345635817. The cubic root of 89409025 is about 447.1574316135.

The spelling of 89409025 in words is "eighty-nine million, four hundred nine thousand, twenty-five".