89831709 has 12 divisors (see below), whose sum is σ = 141553152. Its totient is φ = 54443400.

The previous prime is 89831701. The next prime is 89831713. The reversal of 89831709 is 90713898.

It is not a de Polignac number, because 89831709 - 2³ = 89831701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89831701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 453597 + ... + 453794.

It is an arithmetic number, because the mean of its divisors is an integer number (11796096).

Almost surely, 2^89831709 is an apocalyptic number.

It is an amenable number.

89831709 is a deficient number, since it is larger than the sum of its proper divisors (51721443).

89831709 is a wasteful number, since it uses less digits than its factorization.

89831709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907408 (or 907405 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 89831709 is about 9477.9591157590. The cubic root of 89831709 is about 447.8609744129.

The spelling of 89831709 in words is "eighty-nine million, eight hundred thirty-one thousand, seven hundred nine".