213682943 has 2 divisors, whose sum is σ = 213682944. Its totient is φ = 213682942.

The previous prime is 213682927. The next prime is 213682957. The reversal of 213682943 is 349286312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213682943 - 2⁴ = 213682927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213682897 and 213682906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213685943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106841471 + 106841472.

It is an arithmetic number, because the mean of its divisors is an integer number (106841472).

Almost surely, 2^213682943 is an apocalyptic number.

213682943 is a deficient number, since it is larger than the sum of its proper divisors (1).

213682943 is an equidigital number, since it uses as much as digits as its factorization.

213682943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 213682943 is about 14617.8980363115. The cubic root of 213682943 is about 597.8468594037.

The spelling of 213682943 in words is "two hundred thirteen million, six hundred eighty-two thousand, nine hundred forty-three".