838613 has 2 divisors, whose sum is σ = 838614. Its totient is φ = 838612.

The previous prime is 838609. The next prime is 838631. The reversal of 838613 is 316838.

Together with next prime (838631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 628849 + 209764 = 793^2 + 458^2 .

It is a cyclic number.

It is not a de Polignac number, because 838613 - 2² = 838609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419306 + 419307.

It is an arithmetic number, because the mean of its divisors is an integer number (419307).

2⁸³⁸⁶¹³ is an apocalyptic number.

It is an amenable number.

838613 is a deficient number, since it is larger than the sum of its proper divisors (1).

838613 is an equidigital number, since it uses as much as digits as its factorization.

838613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 838613 is about 915.7581558468. The cubic root of 838613 is about 94.3019189210.

The spelling of 838613 in words is "eight hundred thirty-eight thousand, six hundred thirteen".