213628711 has 2 divisors, whose sum is σ = 213628712. Its totient is φ = 213628710.

The previous prime is 213628693. The next prime is 213628721. The reversal of 213628711 is 117826312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213628711 - 2⁹ = 213628199 is a prime.

It is equal to p_11790724 and since 213628711 and 11790724 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213628721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106814355 + 106814356.

It is an arithmetic number, because the mean of its divisors is an integer number (106814356).

Almost surely, 2^213628711 is an apocalyptic number.

213628711 is a deficient number, since it is larger than the sum of its proper divisors (1).

213628711 is an equidigital number, since it uses as much as digits as its factorization.

213628711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The square root of 213628711 is about 14616.0429323398. The cubic root of 213628711 is about 597.7962779617.

The spelling of 213628711 in words is "two hundred thirteen million, six hundred twenty-eight thousand, seven hundred eleven".