83083640 has 16 divisors (see below), whose sum is σ = 186938280. Its totient is φ = 33233440.

The previous prime is 83083631. The next prime is 83083667. The reversal of 83083640 is 4638038.

It is a junction number, because it is equal to n+sod(n) for n = 83083597 and 83083606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1038506 + ... + 1038585.

Almost surely, 2^83083640 is an apocalyptic number.

It is an amenable number.

83083640 is an abundant number, since it is smaller than the sum of its proper divisors (103854640).

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

83083640 is a wasteful number, since it uses less digits than its factorization.

83083640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077102 (or 2077098 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 83083640 is about 9115.0227646452. The cubic root of 83083640 is about 436.3535414857.

The spelling of 83083640 in words is "eighty-three million, eighty-three thousand, six hundred forty".