838507349 has 2 divisors, whose sum is σ = 838507350. Its totient is φ = 838507348.

The previous prime is 838507331. The next prime is 838507367. The reversal of 838507349 is 943705838.

It is a balanced prime because it is at equal distance from previous prime (838507331) and next prime (838507367).

It can be written as a sum of positive squares in only one way, i.e., 569776900 + 268730449 = 23870^2 + 16393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838507349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838507309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419253674 + 419253675.

It is an arithmetic number, because the mean of its divisors is an integer number (419253675).

Almost surely, 2^838507349 is an apocalyptic number.

It is an amenable number.

838507349 is a deficient number, since it is larger than the sum of its proper divisors (1).

838507349 is an equidigital number, since it uses as much as digits as its factorization.

838507349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 838507349 is about 28956.9913665077. The cubic root of 838507349 is about 942.9795860781.

The spelling of 838507349 in words is "eight hundred thirty-eight million, five hundred seven thousand, three hundred forty-nine".