89642685 has 16 divisors (see below), whose sum is σ = 156467520. Its totient is φ = 43463040.

The previous prime is 89642671. The next prime is 89642747. The reversal of 89642685 is 58624698.

It is a happy number.

It is not a de Polignac number, because 89642685 - 2⁶ = 89642621 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271480 + ... + 271809.

It is an arithmetic number, because the mean of its divisors is an integer number (9779220).

Almost surely, 2^89642685 is an apocalyptic number.

It is an amenable number.

89642685 is a deficient number, since it is larger than the sum of its proper divisors (66824835).

89642685 is a wasteful number, since it uses less digits than its factorization.

89642685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543308.

The product of its digits is 829440, while the sum is 48.

The square root of 89642685 is about 9467.9820975750. The cubic root of 89642685 is about 447.5466239407.

The spelling of 89642685 in words is "eighty-nine million, six hundred forty-two thousand, six hundred eighty-five".