899979853 has 2 divisors, whose sum is σ = 899979854. Its totient is φ = 899979852.

The previous prime is 899979841. The next prime is 899979893. The reversal of 899979853 is 358979998.

899979853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 780252489 + 119727364 = 27933^2 + 10942^2 .

It is a cyclic number.

It is not a de Polignac number, because 899979853 - 2¹³ = 899971661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (899979833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449989926 + 449989927.

It is an arithmetic number, because the mean of its divisors is an integer number (449989927).

Almost surely, 2^899979853 is an apocalyptic number.

It is an amenable number.

899979853 is a deficient number, since it is larger than the sum of its proper divisors (1).

899979853 is an equidigital number, since it uses as much as digits as its factorization.

899979853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44089920, while the sum is 67.

The square root of 899979853 is about 29999.6642147875. The cubic root of 899979853 is about 965.4821802131.

The spelling of 899979853 in words is "eight hundred ninety-nine million, nine hundred seventy-nine thousand, eight hundred fifty-three".