899700049 has 2 divisors, whose sum is σ = 899700050. Its totient is φ = 899700048.

The previous prime is 899700019. The next prime is 899700071. The reversal of 899700049 is 940007998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 861011649 + 38688400 = 29343^2 + 6220^2 .

It is a cyclic number.

It is not a de Polignac number, because 899700049 - 2⁷ = 899699921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 899699981 and 899700008.

It is not a weakly prime, because it can be changed into another prime (899700019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449850024 + 449850025.

It is an arithmetic number, because the mean of its divisors is an integer number (449850025).

Almost surely, 2^899700049 is an apocalyptic number.

It is an amenable number.

899700049 is a deficient number, since it is larger than the sum of its proper divisors (1).

899700049 is an equidigital number, since it uses as much as digits as its factorization.

899700049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 899700049 is about 29995.0004000667. Note that the first 3 decimals coincide. The cubic root of 899700049 is about 965.3821136112.

The spelling of 899700049 in words is "eight hundred ninety-nine million, seven hundred thousand, forty-nine".