22747423 has 2 divisors, whose sum is σ = 22747424. Its totient is φ = 22747422.

The previous prime is 22747409. The next prime is 22747429. The reversal of 22747423 is 32474722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22747423 - 2¹³ = 22739231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22747429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11373711 + 11373712.

It is an arithmetic number, because the mean of its divisors is an integer number (11373712).

Almost surely, 2^22747423 is an apocalyptic number.

22747423 is a deficient number, since it is larger than the sum of its proper divisors (1).

22747423 is an equidigital number, since it uses as much as digits as its factorization.

22747423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 31.

The square root of 22747423 is about 4769.4258564318. The cubic root of 22747423 is about 283.3418561066.

The spelling of 22747423 in words is "twenty-two million, seven hundred forty-seven thousand, four hundred twenty-three".