89129685 has 16 divisors (see below), whose sum is σ = 143519616. Its totient is φ = 47231808.

The previous prime is 89129671. The next prime is 89129693. The reversal of 89129685 is 58692198.

It is a happy number.

It is not a de Polignac number, because 89129685 - 2¹⁰ = 89128661 is a prime.

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, 16569 + ... + 21278.

It is an arithmetic number, because the mean of its divisors is an integer number (8969976).

Almost surely, 2^89129685 is an apocalyptic number.

It is an amenable number.

89129685 is a deficient number, since it is larger than the sum of its proper divisors (54389931).

89129685 is a wasteful number, since it uses less digits than its factorization.

89129685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38012.

The product of its digits is 311040, while the sum is 48.

The square root of 89129685 is about 9440.8519213046. The cubic root of 89129685 is about 446.6912621663.

The spelling of 89129685 in words is "eighty-nine million, one hundred twenty-nine thousand, six hundred eighty-five".