838738007 has 4 divisors (see below), whose sum is σ = 838810896. Its totient is φ = 838665120.

The previous prime is 838738001. The next prime is 838738009. The reversal of 838738007 is 700837838.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 838738007 - 2¹⁴ = 838721623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838738001) 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, 14963 + ... + 43604.

It is an arithmetic number, because the mean of its divisors is an integer number (209702724).

Almost surely, 2^838738007 is an apocalyptic number.

838738007 is a deficient number, since it is larger than the sum of its proper divisors (72889).

838738007 is a wasteful number, since it uses less digits than its factorization.

838738007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72888.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 838738007 is about 28960.9738613880. The cubic root of 838738007 is about 943.0660436167.

The spelling of 838738007 in words is "eight hundred thirty-eight million, seven hundred thirty-eight thousand, seven".