213366473 has 16 divisors (see below), whose sum is σ = 232822656. Its totient is φ = 194745600.

The previous prime is 213366451. The next prime is 213366509. The reversal of 213366473 is 374663312.

It is a cyclic number.

It is not a de Polignac number, because 213366473 - 2¹⁶ = 213300937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213366773) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 109415 + ... + 111347.

It is an arithmetic number, because the mean of its divisors is an integer number (14551416).

Almost surely, 2^213366473 is an apocalyptic number.

It is an amenable number.

213366473 is a deficient number, since it is larger than the sum of its proper divisors (19456183).

213366473 is a wasteful number, since it uses less digits than its factorization.

213366473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144.

The product of its digits is 54432, while the sum is 35.

The square root of 213366473 is about 14607.0692816869. The cubic root of 213366473 is about 597.5515713264.

The spelling of 213366473 in words is "two hundred thirteen million, three hundred sixty-six thousand, four hundred seventy-three".