213284767 has 2 divisors, whose sum is σ = 213284768. Its totient is φ = 213284766.

The previous prime is 213284749. The next prime is 213284779. The reversal of 213284767 is 767482312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213284767 - 2¹⁵ = 213251999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213284717) by changing a digit.

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 as a sum of consecutive naturals, namely, 106642383 + 106642384.

It is an arithmetic number, because the mean of its divisors is an integer number (106642384).

Almost surely, 2^213284767 is an apocalyptic number.

213284767 is a deficient number, since it is larger than the sum of its proper divisors (1).

213284767 is an equidigital number, since it uses as much as digits as its factorization.

213284767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 40.

The square root of 213284767 is about 14604.2722174027. The cubic root of 213284767 is about 597.4752866420.

The spelling of 213284767 in words is "two hundred thirteen million, two hundred eighty-four thousand, seven hundred sixty-seven".