83442784 has 12 divisors (see below), whose sum is σ = 164278044. Its totient is φ = 41721376.

The previous prime is 83442769. The next prime is 83442803. The reversal of 83442784 is 48724438.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1303762 + ... + 1303825.

It is an arithmetic number, because the mean of its divisors is an integer number (13689837).

Almost surely, 2^83442784 is an apocalyptic number.

It is an amenable number.

83442784 is a deficient number, since it is larger than the sum of its proper divisors (80835260).

83442784 is a wasteful number, since it uses less digits than its factorization.

83442784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607597 (or 2607589 counting only the distinct ones).

The product of its digits is 172032, while the sum is 40.

The square root of 83442784 is about 9134.7021845269. The cubic root of 83442784 is about 436.9813766376.

The spelling of 83442784 in words is "eighty-three million, four hundred forty-two thousand, seven hundred eighty-four".