838887213 has 8 divisors (see below), whose sum is σ = 1118659168. Its totient is φ = 559186704.

The previous prime is 838887209. The next prime is 838887229. The reversal of 838887213 is 312788838.

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

It is not a de Polignac number, because 838887213 - 2² = 838887209 is a prime.

It is a super-2 number, since 2×838887213² = 1407463512269814738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838887613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22695 + ... + 46827.

It is an arithmetic number, because the mean of its divisors is an integer number (139832396).

Almost surely, 2^838887213 is an apocalyptic number.

It is an amenable number.

838887213 is a deficient number, since it is larger than the sum of its proper divisors (279771955).

838887213 is a wasteful number, since it uses less digits than its factorization.

838887213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35723.

The product of its digits is 516096, while the sum is 48.

The square root of 838887213 is about 28963.5497306528. The cubic root of 838887213 is about 943.1219620592.

The spelling of 838887213 in words is "eight hundred thirty-eight million, eight hundred eighty-seven thousand, two hundred thirteen".