83990344 has 8 divisors (see below), whose sum is σ = 157481910. Its totient is φ = 41995168.

The previous prime is 83990339. The next prime is 83990381. The reversal of 83990344 is 44309938.

It can be written as a sum of positive squares in only one way, i.e., 49533444 + 34456900 = 7038^2 + 5870^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 83990297 and 83990306.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5249389 + ... + 5249404.

Almost surely, 2^83990344 is an apocalyptic number.

It is an amenable number.

83990344 is a deficient number, since it is larger than the sum of its proper divisors (73491566).

83990344 is a wasteful number, since it uses less digits than its factorization.

83990344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10498799 (or 10498795 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 83990344 is about 9164.6245967852. The cubic root of 83990344 is about 437.9351321406.

The spelling of 83990344 in words is "eighty-three million, nine hundred ninety thousand, three hundred forty-four".