213826984 has 24 divisors (see below), whose sum is σ = 466383690. Its totient is φ = 91639968.

The previous prime is 213826957. The next prime is 213827011. The reversal of 213826984 is 489628312.

It is an interprime number because it is at equal distance from previous prime (213826957) and next prime (213827011).

It can be written as a sum of positive squares in only one way, i.e., 178756900 + 35070084 = 13370^2 + 5922^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213826984.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 272347 + ... + 273130.

Almost surely, 2^213826984 is an apocalyptic number.

It is an amenable number.

213826984 is an abundant number, since it is smaller than the sum of its proper divisors (252556706).

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

213826984 is a wasteful number, since it uses less digits than its factorization.

213826984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545497 (or 545486 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 213826984 is about 14622.8240774482. The cubic root of 213826984 is about 597.9811629283.

The spelling of 213826984 in words is "two hundred thirteen million, eight hundred twenty-six thousand, nine hundred eighty-four".