213326667 has 12 divisors (see below), whose sum is σ = 308406384. Its totient is φ = 142094160.

The previous prime is 213326647. The next prime is 213326689. The reversal of 213326667 is 766623312.

It is not a de Polignac number, because 213326667 - 2⁷ = 213326539 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (213326627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1317 + ... + 20697.

It is an arithmetic number, because the mean of its divisors is an integer number (25700532).

Almost surely, 2^213326667 is an apocalyptic number.

213326667 is a deficient number, since it is larger than the sum of its proper divisors (95079717).

213326667 is a wasteful number, since it uses less digits than its factorization.

213326667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20610 (or 20607 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 213326667 is about 14605.7066587002. The cubic root of 213326667 is about 597.5144089474.

Adding to 213326667 its reverse (766623312), we get a palindrome (979949979).

The spelling of 213326667 in words is "two hundred thirteen million, three hundred twenty-six thousand, six hundred sixty-seven".