838890713 has 2 divisors, whose sum is σ = 838890714. Its totient is φ = 838890712.

The previous prime is 838890691. The next prime is 838890761. The reversal of 838890713 is 317098838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 838855369 + 35344 = 28963^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 838890713 - 2¹² = 838886617 is a prime.

It is not a weakly prime, because it can be changed into another prime (838890763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419445356 + 419445357.

It is an arithmetic number, because the mean of its divisors is an integer number (419445357).

Almost surely, 2^838890713 is an apocalyptic number.

It is an amenable number.

838890713 is a deficient number, since it is larger than the sum of its proper divisors (1).

838890713 is an equidigital number, since it uses as much as digits as its factorization.

838890713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 838890713 is about 28963.6101513606. The cubic root of 838890713 is about 943.1232736866.

The spelling of 838890713 in words is "eight hundred thirty-eight million, eight hundred ninety thousand, seven hundred thirteen".