23213767 has 2 divisors, whose sum is σ = 23213768. Its totient is φ = 23213766.

The previous prime is 23213759. The next prime is 23213779. The reversal of 23213767 is 76731232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23213767 - 2³ = 23213759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23213797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11606883 + 11606884.

It is an arithmetic number, because the mean of its divisors is an integer number (11606884).

Almost surely, 2^23213767 is an apocalyptic number.

23213767 is a deficient number, since it is larger than the sum of its proper divisors (1).

23213767 is an equidigital number, since it uses as much as digits as its factorization.

23213767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 31.

The square root of 23213767 is about 4818.0667284711. The cubic root of 23213767 is about 285.2650330319.

Adding to 23213767 its reverse (76731232), we get a palindrome (99944999).

The spelling of 23213767 in words is "twenty-three million, two hundred thirteen thousand, seven hundred sixty-seven".