89742492 has 60 divisors (see below), whose sum is σ = 268126320. Its totient is φ = 25640064.

The previous prime is 89742487. The next prime is 89742493. The reversal of 89742492 is 29424798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89742493) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17517 + ... + 22052.

It is an arithmetic number, because the mean of its divisors is an integer number (4468772).

Almost surely, 2^89742492 is an apocalyptic number.

It is an amenable number.

89742492 is an abundant number, since it is smaller than the sum of its proper divisors (178383828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89742492 is a wasteful number, since it uses less digits than its factorization.

89742492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39592 (or 39581 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 89742492 is about 9473.2513953764. The cubic root of 89742492 is about 447.7126598660.

The spelling of 89742492 in words is "eighty-nine million, seven hundred forty-two thousand, four hundred ninety-two".