990337683 has 6 divisors (see below), whose sum is σ = 1320522924. Its totient is φ = 660188784.

The previous prime is 990337681. The next prime is 990337693. The reversal of 990337683 is 386733099.

It is a happy number.

It is not a de Polignac number, because 990337683 - 2¹ = 990337681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (990337681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45423 + ... + 63591.

It is an arithmetic number, because the mean of its divisors is an integer number (220087154).

Almost surely, 2^990337683 is an apocalyptic number.

990337683 is a deficient number, since it is larger than the sum of its proper divisors (330185241).

990337683 is an frugal number, since it uses more digits than its factorization.

990337683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36341 (or 18172 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 990337683 is about 31469.6311227189. The cubic root of 990337683 is about 996.7687982472.

Multiplying 990337683 by its sum of digits (48), we get a square (47536208784 = 218028²).

It can be divided in two parts, 9903 and 37683, that added together give a triangular number (47586 = T₃₀₈).

The spelling of 990337683 in words is "nine hundred ninety million, three hundred thirty-seven thousand, six hundred eighty-three".