89218782 has 12 divisors (see below), whose sum is σ = 193307400. Its totient is φ = 29739588.

The previous prime is 89218781. The next prime is 89218799. The reversal of 89218782 is 28781298.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89218781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2478282 + ... + 2478317.

It is an arithmetic number, because the mean of its divisors is an integer number (16108950).

Almost surely, 2^89218782 is an apocalyptic number.

89218782 is an abundant number, since it is smaller than the sum of its proper divisors (104088618).

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

89218782 is a wasteful number, since it uses less digits than its factorization.

89218782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956607 (or 4956604 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 89218782 is about 9445.5694375723. The cubic root of 89218782 is about 446.8400550828.

It can be divided in two parts, 89218 and 782, that added together give a square (90000 = 300²).

The spelling of 89218782 in words is "eighty-nine million, two hundred eighteen thousand, seven hundred eighty-two".