89642799 has 48 divisors (see below), whose sum is σ = 142084800. Its totient is φ = 54286848.

The previous prime is 89642783. The next prime is 89642807. The reversal of 89642799 is 99724698.

It is not a de Polignac number, because 89642799 - 2⁴ = 89642783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89642099) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 654259 + ... + 654395.

It is an arithmetic number, because the mean of its divisors is an integer number (2960100).

Almost surely, 2^89642799 is an apocalyptic number.

89642799 is a deficient number, since it is larger than the sum of its proper divisors (52442001).

89642799 is a wasteful number, since it uses less digits than its factorization.

89642799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 301 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 89642799 is about 9467.9881178633. The cubic root of 89642799 is about 447.5468136580.

The spelling of 89642799 in words is "eighty-nine million, six hundred forty-two thousand, seven hundred ninety-nine".