213843066 has 16 divisors (see below), whose sum is σ = 430077600. Its totient is φ = 70882448.

The previous prime is 213843041. The next prime is 213843083. The reversal of 213843066 is 660348312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98481 + ... + 100628.

It is an arithmetic number, because the mean of its divisors is an integer number (26879850).

Almost surely, 2^213843066 is an apocalyptic number.

213843066 is an abundant number, since it is smaller than the sum of its proper divisors (216234534).

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

213843066 is a wasteful number, since it uses less digits than its factorization.

213843066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199293.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 213843066 is about 14623.3739608888. The cubic root of 213843066 is about 597.9961540078.

The spelling of 213843066 in words is "two hundred thirteen million, eight hundred forty-three thousand, sixty-six".