838338929 has 4 divisors (see below), whose sum is σ = 839046384. Its totient is φ = 837631476.

The previous prime is 838338923. The next prime is 838338973. The reversal of 838338929 is 929833838.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 838338929 - 2⁴ = 838338913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (838338923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351947 + ... + 354320.

It is an arithmetic number, because the mean of its divisors is an integer number (209761596).

Almost surely, 2^838338929 is an apocalyptic number.

It is an amenable number.

838338929 is a deficient number, since it is larger than the sum of its proper divisors (707455).

838338929 is a wasteful number, since it uses less digits than its factorization.

838338929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707454.

The product of its digits is 2239488, while the sum is 53.

The square root of 838338929 is about 28954.0831144763. The cubic root of 838338929 is about 942.9164471935.

The spelling of 838338929 in words is "eight hundred thirty-eight million, three hundred thirty-eight thousand, nine hundred twenty-nine".