89736012 has 144 divisors (see below), whose sum is σ = 255615360. Its totient is φ = 27433728.

The previous prime is 89736011. The next prime is 89736071. The reversal of 89736012 is 21063798.

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 (89736011) 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, 794068 + ... + 794180.

Almost surely, 2^89736012 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 89736012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127807680).

89736012 is an abundant number, since it is smaller than the sum of its proper divisors (165879348).

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

89736012 is a wasteful number, since it uses less digits than its factorization.

89736012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 89736012 is about 9472.9093735768. The cubic root of 89736012 is about 447.7018836707.

The spelling of 89736012 in words is "eighty-nine million, seven hundred thirty-six thousand, twelve".