990353201 has 2 divisors, whose sum is σ = 990353202. Its totient is φ = 990353200.

The previous prime is 990353171. The next prime is 990353209. The reversal of 990353201 is 102353099.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 637815025 + 352538176 = 25255^2 + 18776^2 .

It is a cyclic number.

It is not a de Polignac number, because 990353201 - 2¹⁰ = 990352177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (990353209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495176600 + 495176601.

It is an arithmetic number, because the mean of its divisors is an integer number (495176601).

Almost surely, 2^990353201 is an apocalyptic number.

It is an amenable number.

990353201 is a deficient number, since it is larger than the sum of its proper divisors (1).

990353201 is an equidigital number, since it uses as much as digits as its factorization.

990353201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 990353201 is about 31469.8776769151. The cubic root of 990353201 is about 996.7740044772.

The spelling of 990353201 in words is "nine hundred ninety million, three hundred fifty-three thousand, two hundred one".