22103947 has 2 divisors, whose sum is σ = 22103948. Its totient is φ = 22103946.

The previous prime is 22103909. The next prime is 22103957. The reversal of 22103947 is 74930122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22103947 - 2¹⁹ = 21579659 is a prime.

It is not a weakly prime, because it can be changed into another prime (22103957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051973 + 11051974.

It is an arithmetic number, because the mean of its divisors is an integer number (11051974).

Almost surely, 2^22103947 is an apocalyptic number.

22103947 is a deficient number, since it is larger than the sum of its proper divisors (1).

22103947 is an equidigital number, since it uses as much as digits as its factorization.

22103947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 22103947 is about 4701.4834892829. The cubic root of 22103947 is about 280.6445483015.

The spelling of 22103947 in words is "twenty-two million, one hundred three thousand, nine hundred forty-seven".