89680687 has 4 divisors (see below), whose sum is σ = 90056160. Its totient is φ = 89305216.

The previous prime is 89680631. The next prime is 89680693. The reversal of 89680687 is 78608698.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89680687 - 2¹⁹ = 89156399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89180687) 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, 187378 + ... + 187855.

It is an arithmetic number, because the mean of its divisors is an integer number (22514040).

Almost surely, 2^89680687 is an apocalyptic number.

89680687 is a deficient number, since it is larger than the sum of its proper divisors (375473).

89680687 is a wasteful number, since it uses less digits than its factorization.

89680687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375472.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 89680687 is about 9469.9887539532. The cubic root of 89680687 is about 447.6098574476.

The spelling of 89680687 in words is "eighty-nine million, six hundred eighty thousand, six hundred eighty-seven".