22745929 has 2 divisors, whose sum is σ = 22745930. Its totient is φ = 22745928.

The previous prime is 22745927. The next prime is 22745941. The reversal of 22745929 is 92954722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19316025 + 3429904 = 4395^2 + 1852^2 .

It is a cyclic number.

It is not a de Polignac number, because 22745929 - 2¹ = 22745927 is a prime.

Together with 22745927, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 22745891 and 22745900.

It is not a weakly prime, because it can be changed into another prime (22745927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11372964 + 11372965.

It is an arithmetic number, because the mean of its divisors is an integer number (11372965).

Almost surely, 2^22745929 is an apocalyptic number.

It is an amenable number.

22745929 is a deficient number, since it is larger than the sum of its proper divisors (1).

22745929 is an equidigital number, since it uses as much as digits as its factorization.

22745929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 22745929 is about 4769.2692312345. The cubic root of 22745929 is about 283.3356528837.

The spelling of 22745929 in words is "twenty-two million, seven hundred forty-five thousand, nine hundred twenty-nine".