990703398 has 16 divisors (see below), whose sum is σ = 1999586160. Its totient is φ = 327204576.

The previous prime is 990703393. The next prime is 990703409. The reversal of 990703398 is 893307099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990703393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756765 + ... + 758072.

It is an arithmetic number, because the mean of its divisors is an integer number (124974135).

Almost surely, 2^990703398 is an apocalyptic number.

990703398 is an abundant number, since it is smaller than the sum of its proper divisors (1008882762).

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

990703398 is a wasteful number, since it uses less digits than its factorization.

990703398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514951.

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 990703398 is about 31475.4411883297. The cubic root of 990703398 is about 996.8914797812.

The spelling of 990703398 in words is "nine hundred ninety million, seven hundred three thousand, three hundred ninety-eight".