83403664 has 10 divisors (see below), whose sum is σ = 161594630. Its totient is φ = 41701824.

The previous prime is 83403637. The next prime is 83403707. The reversal of 83403664 is 46630438.

It can be written as a sum of positive squares in only one way, i.e., 72114064 + 11289600 = 8492^2 + 3360^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2606349 + ... + 2606380.

It is an arithmetic number, because the mean of its divisors is an integer number (16159463).

Almost surely, 2^83403664 is an apocalyptic number.

It is an amenable number.

83403664 is a deficient number, since it is larger than the sum of its proper divisors (78190966).

83403664 is a wasteful number, since it uses less digits than its factorization.

83403664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5212737 (or 5212731 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 83403664 is about 9132.5606485804. The cubic root of 83403664 is about 436.9130768086.

The spelling of 83403664 in words is "eighty-three million, four hundred three thousand, six hundred sixty-four".