23331779 has 2 divisors, whose sum is σ = 23331780. Its totient is φ = 23331778.

The previous prime is 23331773. The next prime is 23331797. The reversal of 23331779 is 97713332.

Together with next prime (23331797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23331779 - 2¹² = 23327683 is a prime.

It is a super-2 number, since 2×23331779² = 1088743822609682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23331773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11665889 + 11665890.

It is an arithmetic number, because the mean of its divisors is an integer number (11665890).

Almost surely, 2^23331779 is an apocalyptic number.

23331779 is a deficient number, since it is larger than the sum of its proper divisors (1).

23331779 is an equidigital number, since it uses as much as digits as its factorization.

23331779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814, while the sum is 35.

The square root of 23331779 is about 4830.2980239319. The cubic root of 23331779 is about 285.7476175042.

The spelling of 23331779 in words is "twenty-three million, three hundred thirty-one thousand, seven hundred seventy-nine".