83631616 has 40 divisors (see below), whose sum is σ = 175915080. Its totient is φ = 39610368.

The previous prime is 83631607. The next prime is 83631637. The reversal of 83631616 is 61613638.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5430 + ... + 14026.

It is an arithmetic number, because the mean of its divisors is an integer number (4397877).

Almost surely, 2^83631616 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 83631616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87957540).

83631616 is an abundant number, since it is smaller than the sum of its proper divisors (92283464).

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

83631616 is an equidigital number, since it uses as much as digits as its factorization.

83631616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8634 (or 8618 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 83631616 is about 9145.0323126821. The cubic root of 83631616 is about 437.3107596254.

The spelling of 83631616 in words is "eighty-three million, six hundred thirty-one thousand, six hundred sixteen".