838063613 has 8 divisors (see below), whose sum is σ = 861715800. Its totient is φ = 814701888.

The previous prime is 838063591. The next prime is 838063619. The reversal of 838063613 is 316360838.

It can be written as a sum of positive squares in 4 ways, for example, as 291111844 + 546951769 = 17062^2 + 23387^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 838063613 - 2⁶ = 838063549 is a prime.

It is a super-2 number, since 2×838063613² = 1404701238869227538, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838063619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66758 + ... + 78311.

It is an arithmetic number, because the mean of its divisors is an integer number (107714475).

Almost surely, 2^838063613 is an apocalyptic number.

It is an amenable number.

838063613 is a deficient number, since it is larger than the sum of its proper divisors (23652187).

838063613 is a wasteful number, since it uses less digits than its factorization.

838063613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145231.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 838063613 is about 28949.3283687204. The cubic root of 838063613 is about 942.8132159112.

The spelling of 838063613 in words is "eight hundred thirty-eight million, sixty-three thousand, six hundred thirteen".