839772853 has 2 divisors, whose sum is σ = 839772854. Its totient is φ = 839772852.

The previous prime is 839772847. The next prime is 839772881. The reversal of 839772853 is 358277938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 521756964 + 318015889 = 22842^2 + 17833^2 .

It is a cyclic number.

It is not a de Polignac number, because 839772853 - 2⁵ = 839772821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 839772853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (839772823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419886426 + 419886427.

It is an arithmetic number, because the mean of its divisors is an integer number (419886427).

Almost surely, 2^839772853 is an apocalyptic number.

It is an amenable number.

839772853 is a deficient number, since it is larger than the sum of its proper divisors (1).

839772853 is an equidigital number, since it uses as much as digits as its factorization.

839772853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 52.

The square root of 839772853 is about 28978.8345693887. The cubic root of 839772853 is about 943.4537399806.

The spelling of 839772853 in words is "eight hundred thirty-nine million, seven hundred seventy-two thousand, eight hundred fifty-three".