89684709 has 4 divisors (see below), whose sum is σ = 119579616. Its totient is φ = 59789804.

The previous prime is 89684669. The next prime is 89684711. The reversal of 89684709 is 90748698.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89684709 - 2⁸ = 89684453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89684909) 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, 14947449 + ... + 14947454.

It is an arithmetic number, because the mean of its divisors is an integer number (29894904).

Almost surely, 2^89684709 is an apocalyptic number.

It is an amenable number.

89684709 is a deficient number, since it is larger than the sum of its proper divisors (29894907).

89684709 is a wasteful number, since it uses less digits than its factorization.

89684709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29894906.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 89684709 is about 9470.2011066292. The cubic root of 89684709 is about 447.6165488175.

The spelling of 89684709 in words is "eighty-nine million, six hundred eighty-four thousand, seven hundred nine".