213693284 has 24 divisors (see below), whose sum is σ = 433769280. Its totient is φ = 90215136.

The previous prime is 213693251. The next prime is 213693289. The reversal of 213693284 is 482396312.

It is not an unprimeable number, because it can be changed into a prime (213693289) 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, 55079 + ... + 58830.

It is an arithmetic number, because the mean of its divisors is an integer number (18073720).

Almost surely, 2^213693284 is an apocalyptic number.

It is an amenable number.

213693284 is an abundant number, since it is smaller than the sum of its proper divisors (220075996).

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

213693284 is a wasteful number, since it uses less digits than its factorization.

213693284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113987 (or 113985 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 213693284 is about 14618.2517422570. The cubic root of 213693284 is about 597.8565033409.

The spelling of 213693284 in words is "two hundred thirteen million, six hundred ninety-three thousand, two hundred eighty-four".