990839299 has 2 divisors, whose sum is σ = 990839300. Its totient is φ = 990839298.

The previous prime is 990839273. The next prime is 990839387. The reversal of 990839299 is 992938099.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 990839299 - 2⁹ = 990838787 is a prime.

It is a super-2 number, since 2×990839299² = 1963525032885622802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (990839219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495419649 + 495419650.

It is an arithmetic number, because the mean of its divisors is an integer number (495419650).

Almost surely, 2^990839299 is an apocalyptic number.

990839299 is a deficient number, since it is larger than the sum of its proper divisors (1).

990839299 is an equidigital number, since it uses as much as digits as its factorization.

990839299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2834352, while the sum is 58.

The square root of 990839299 is about 31477.5999561593. The cubic root of 990839299 is about 996.9370609830.

The spelling of 990839299 in words is "nine hundred ninety million, eight hundred thirty-nine thousand, two hundred ninety-nine".