990230713 has 2 divisors, whose sum is σ = 990230714. Its totient is φ = 990230712.

The previous prime is 990230699. The next prime is 990230743. The reversal of 990230713 is 317032099.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 872139024 + 118091689 = 29532^2 + 10867^2 .

It is a cyclic number.

It is not a de Polignac number, because 990230713 - 2¹³ = 990222521 is a prime.

It is not a weakly prime, because it can be changed into another prime (990230743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495115356 + 495115357.

It is an arithmetic number, because the mean of its divisors is an integer number (495115357).

Almost surely, 2^990230713 is an apocalyptic number.

It is an amenable number.

990230713 is a deficient number, since it is larger than the sum of its proper divisors (1).

990230713 is an equidigital number, since it uses as much as digits as its factorization.

990230713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 990230713 is about 31467.9315017686. The cubic root of 990230713 is about 996.7329087389.

The spelling of 990230713 in words is "nine hundred ninety million, two hundred thirty thousand, seven hundred thirteen".