899040983 has 2 divisors, whose sum is σ = 899040984. Its totient is φ = 899040982.

The previous prime is 899040953. The next prime is 899041009. The reversal of 899040983 is 389040998.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-899040983 is a prime.

It is a super-2 number, since 2×899040983² = 1616549378227212578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (899040943) 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, 449520491 + 449520492.

It is an arithmetic number, because the mean of its divisors is an integer number (449520492).

Almost surely, 2^899040983 is an apocalyptic number.

899040983 is a deficient number, since it is larger than the sum of its proper divisors (1).

899040983 is an equidigital number, since it uses as much as digits as its factorization.

899040983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 899040983 is about 29984.0121231299. The cubic root of 899040983 is about 965.1463291215.

The spelling of 899040983 in words is "eight hundred ninety-nine million, forty thousand, nine hundred eighty-three".