89986142 has 4 divisors (see below), whose sum is σ = 134979216. Its totient is φ = 44993070.

The previous prime is 89986133. The next prime is 89986177. The reversal of 89986142 is 24168998.

89986142 is nontrivially palindromic in base 9.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22496534 + ... + 22496537.

It is an arithmetic number, because the mean of its divisors is an integer number (33744804).

Almost surely, 2^89986142 is an apocalyptic number.

89986142 is a deficient number, since it is larger than the sum of its proper divisors (44993074).

89986142 is a wasteful number, since it uses less digits than its factorization.

89986142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44993073.

The product of its digits is 248832, while the sum is 47.

The square root of 89986142 is about 9486.1025716571. The cubic root of 89986142 is about 448.1174722502.

The spelling of 89986142 in words is "eighty-nine million, nine hundred eighty-six thousand, one hundred forty-two".