89109725 has 6 divisors (see below), whose sum is σ = 110496090. Its totient is φ = 71287760.

The previous prime is 89109719. The next prime is 89109743. The reversal of 89109725 is 52790198.

It can be written as a sum of positive squares in 3 ways, for example, as 17926756 + 71182969 = 4234^2 + 8437^2 .

It is not a de Polignac number, because 89109725 - 2⁶ = 89109661 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1782170 + ... + 1782219.

It is an arithmetic number, because the mean of its divisors is an integer number (18416015).

Almost surely, 2^89109725 is an apocalyptic number.

It is an amenable number.

89109725 is a deficient number, since it is larger than the sum of its proper divisors (21386365).

89109725 is a wasteful number, since it uses less digits than its factorization.

89109725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564399 (or 3564394 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 89109725 is about 9439.7947541247. The cubic root of 89109725 is about 446.6579151648.

The spelling of 89109725 in words is "eighty-nine million, one hundred nine thousand, seven hundred twenty-five".