838885007 has 4 divisors (see below), whose sum is σ = 854713080. Its totient is φ = 823056936.

The previous prime is 838884997. The next prime is 838885031. The reversal of 838885007 is 700588838.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838885007 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 (838885507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7913957 + ... + 7914062.

It is an arithmetic number, because the mean of its divisors is an integer number (213678270).

Almost surely, 2^838885007 is an apocalyptic number.

838885007 is a deficient number, since it is larger than the sum of its proper divisors (15828073).

838885007 is a wasteful number, since it uses less digits than its factorization.

838885007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15828072.

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 838885007 is about 28963.5116482791. The cubic root of 838885007 is about 943.1211353573.

The spelling of 838885007 in words is "eight hundred thirty-eight million, eight hundred eighty-five thousand, seven".