213683814 has 12 divisors (see below), whose sum is σ = 462981636. Its totient is φ = 71227932.

The previous prime is 213683807. The next prime is 213683819. The reversal of 213683814 is 418386312.

213683814 is a `hidden beast` number, since 213 + 68 + 381 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213683819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5935644 + ... + 5935679.

It is an arithmetic number, because the mean of its divisors is an integer number (38581803).

Almost surely, 2^213683814 is an apocalyptic number.

213683814 is an abundant number, since it is smaller than the sum of its proper divisors (249297822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213683814 is a wasteful number, since it uses less digits than its factorization.

213683814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11871331 (or 11871328 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 213683814 is about 14617.9278285262. The cubic root of 213683814 is about 597.8476717036.

The spelling of 213683814 in words is "two hundred thirteen million, six hundred eighty-three thousand, eight hundred fourteen".