22732739 has 2 divisors, whose sum is σ = 22732740. Its totient is φ = 22732738.

The previous prime is 22732727. The next prime is 22732747. The reversal of 22732739 is 93723722.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22732739 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22732699 and 22732708.

It is not a weakly prime, because it can be changed into another prime (22732769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11366369 + 11366370.

It is an arithmetic number, because the mean of its divisors is an integer number (11366370).

Almost surely, 2^22732739 is an apocalyptic number.

22732739 is a deficient number, since it is larger than the sum of its proper divisors (1).

22732739 is an equidigital number, since it uses as much as digits as its factorization.

22732739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 35.

The square root of 22732739 is about 4767.8862192800. The cubic root of 22732739 is about 283.2808750247.

The spelling of 22732739 in words is "twenty-two million, seven hundred thirty-two thousand, seven hundred thirty-nine".