89782638 has 32 divisors (see below), whose sum is σ = 206202240. Its totient is φ = 25774560.

The previous prime is 89782633. The next prime is 89782673. The reversal of 89782638 is 83628798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89782633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34545 + ... + 37052.

It is an arithmetic number, because the mean of its divisors is an integer number (6443820).

Almost surely, 2^89782638 is an apocalyptic number.

89782638 is an abundant number, since it is smaller than the sum of its proper divisors (116419602).

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

89782638 is a wasteful number, since it uses less digits than its factorization.

89782638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71632.

The product of its digits is 1161216, while the sum is 51.

The square root of 89782638 is about 9475.3700719286. The cubic root of 89782638 is about 447.7794108276.

The spelling of 89782638 in words is "eighty-nine million, seven hundred eighty-two thousand, six hundred thirty-eight".