213083866 has 8 divisors (see below), whose sum is σ = 322613280. Its totient is φ = 105546108.

The previous prime is 213083839. The next prime is 213083867. The reversal of 213083866 is 668380312.

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

It is not an unprimeable number, because it can be changed into a prime (213083867) 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, 497646 + ... + 498073.

It is an arithmetic number, because the mean of its divisors is an integer number (40326660).

Almost surely, 2^213083866 is an apocalyptic number.

213083866 is a deficient number, since it is larger than the sum of its proper divisors (109529414).

213083866 is a wasteful number, since it uses less digits than its factorization.

213083866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995828.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 213083866 is about 14597.3924383775. The cubic root of 213083866 is about 597.2876328432.

The spelling of 213083866 in words is "two hundred thirteen million, eighty-three thousand, eight hundred sixty-six".