900850399 has 2 divisors, whose sum is σ = 900850400. Its totient is φ = 900850398.

The previous prime is 900850367. The next prime is 900850429. The reversal of 900850399 is 993058009.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 900850399 - 2⁵ = 900850367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900850339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450425199 + 450425200.

It is an arithmetic number, because the mean of its divisors is an integer number (450425200).

Almost surely, 2^900850399 is an apocalyptic number.

900850399 is a deficient number, since it is larger than the sum of its proper divisors (1).

900850399 is an equidigital number, since it uses as much as digits as its factorization.

900850399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 900850399 is about 30014.1699701991. The cubic root of 900850399 is about 965.7933819176.

The spelling of 900850399 in words is "nine hundred million, eight hundred fifty thousand, three hundred ninety-nine".