838348643 has 8 divisors (see below), whose sum is σ = 954326016. Its totient is φ = 728998600.

The previous prime is 838348639. The next prime is 838348663. The reversal of 838348643 is 346843838.

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

It is not a de Polignac number, because 838348643 - 2² = 838348639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (838348663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1656563 + ... + 1657068.

It is an arithmetic number, because the mean of its divisors is an integer number (119290752).

Almost surely, 2^838348643 is an apocalyptic number.

838348643 is a deficient number, since it is larger than the sum of its proper divisors (115977373).

838348643 is a wasteful number, since it uses less digits than its factorization.

838348643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313665.

The product of its digits is 1327104, while the sum is 47.

The square root of 838348643 is about 28954.2508623518. The cubic root of 838348643 is about 942.9200890996.

The spelling of 838348643 in words is "eight hundred thirty-eight million, three hundred forty-eight thousand, six hundred forty-three".