900838997 has 2 divisors, whose sum is σ = 900838998. Its totient is φ = 900838996.

The previous prime is 900838943. The next prime is 900839011. The reversal of 900838997 is 799838009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 893651236 + 7187761 = 29894^2 + 2681^2 .

It is a cyclic number.

It is not a de Polignac number, because 900838997 - 2¹² = 900834901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900858997) 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 as a sum of consecutive naturals, namely, 450419498 + 450419499.

It is an arithmetic number, because the mean of its divisors is an integer number (450419499).

Almost surely, 2^900838997 is an apocalyptic number.

It is an amenable number.

900838997 is a deficient number, since it is larger than the sum of its proper divisors (1).

900838997 is an equidigital number, since it uses as much as digits as its factorization.

900838997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 900838997 is about 30013.9800259812. The cubic root of 900838997 is about 965.7893072409.

The spelling of 900838997 in words is "nine hundred million, eight hundred thirty-eight thousand, nine hundred ninety-seven".