213067823 has 2 divisors, whose sum is σ = 213067824. Its totient is φ = 213067822.

The previous prime is 213067787. The next prime is 213067831. The reversal of 213067823 is 328760312.

It is a happy number.

213067823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213067823 - 2²⁴ = 196290607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213067823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213066823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106533911 + 106533912.

It is an arithmetic number, because the mean of its divisors is an integer number (106533912).

Almost surely, 2^213067823 is an apocalyptic number.

213067823 is a deficient number, since it is larger than the sum of its proper divisors (1).

213067823 is an equidigital number, since it uses as much as digits as its factorization.

213067823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 213067823 is about 14596.8429120821. The cubic root of 213067823 is about 597.2726426171.

The spelling of 213067823 in words is "two hundred thirteen million, sixty-seven thousand, eight hundred twenty-three".