89724132 has 48 divisors (see below), whose sum is σ = 236577600. Its totient is φ = 29399040.

The previous prime is 89724121. The next prime is 89724133. The reversal of 89724132 is 23142798.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (89724133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669 + ... + 13412.

It is an arithmetic number, because the mean of its divisors is an integer number (4928700).

Almost surely, 2^89724132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89724132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118288800).

89724132 is an abundant number, since it is smaller than the sum of its proper divisors (146853468).

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

89724132 is a wasteful number, since it uses less digits than its factorization.

89724132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14153 (or 14145 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 89724132 is about 9472.2823015364. The cubic root of 89724132 is about 447.6821259651.

The spelling of 89724132 in words is "eighty-nine million, seven hundred twenty-four thousand, one hundred thirty-two".