990552337 has 2 divisors, whose sum is σ = 990552338. Its totient is φ = 990552336.

The previous prime is 990552313. The next prime is 990552383. The reversal of 990552337 is 733255099.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556205056 + 434347281 = 23584^2 + 20841^2 .

It is a cyclic number.

It is not a de Polignac number, because 990552337 - 2¹¹ = 990550289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 990552293 and 990552302.

It is not a weakly prime, because it can be changed into another prime (990552037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495276168 + 495276169.

It is an arithmetic number, because the mean of its divisors is an integer number (495276169).

Almost surely, 2^990552337 is an apocalyptic number.

It is an amenable number.

990552337 is a deficient number, since it is larger than the sum of its proper divisors (1).

990552337 is an equidigital number, since it uses as much as digits as its factorization.

990552337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 255150, while the sum is 43.

The square root of 990552337 is about 31473.0414323116. The cubic root of 990552337 is about 996.8408090225.

The spelling of 990552337 in words is "nine hundred ninety million, five hundred fifty-two thousand, three hundred thirty-seven".