83881408 has 56 divisors (see below), whose sum is σ = 183702960. Its totient is φ = 37754880.

The previous prime is 83881403. The next prime is 83881423. The reversal of 83881408 is 80418838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83881403) 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 7 ways as a sum of consecutive naturals, for example, 32883 + ... + 35341.

It is an arithmetic number, because the mean of its divisors is an integer number (3280410).

Almost surely, 2^83881408 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 83881408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91851480).

83881408 is an abundant number, since it is smaller than the sum of its proper divisors (99821552).

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

83881408 is a wasteful number, since it uses less digits than its factorization.

83881408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525 (or 2515 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 83881408 is about 9158.6793807841. The cubic root of 83881408 is about 437.7457153595.

The spelling of 83881408 in words is "eighty-three million, eight hundred eighty-one thousand, four hundred eight".