89712842 has 8 divisors (see below), whose sum is σ = 142485156. Its totient is φ = 42217792.

The previous prime is 89712809. The next prime is 89712871. The reversal of 89712842 is 24821798.

It can be written as a sum of positive squares in 2 ways, for example, as 86136961 + 3575881 = 9281^2 + 1891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 89712842.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319273 + ... + 1319340.

Almost surely, 2^89712842 is an apocalyptic number.

89712842 is a deficient number, since it is larger than the sum of its proper divisors (52772314).

89712842 is a wasteful number, since it uses less digits than its factorization.

89712842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638632.

The product of its digits is 64512, while the sum is 41.

The square root of 89712842 is about 9471.6863334889. The cubic root of 89712842 is about 447.6633478761.

The spelling of 89712842 in words is "eighty-nine million, seven hundred twelve thousand, eight hundred forty-two".