2205947 has 2 divisors, whose sum is σ = 2205948. Its totient is φ = 2205946.

The previous prime is 2205911. The next prime is 2205949. The reversal of 2205947 is 7495022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2205947 - 2⁶ = 2205883 is a prime.

Together with 2205949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2205949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102973 + 1102974.

It is an arithmetic number, because the mean of its divisors is an integer number (1102974).

2^2205947 is an apocalyptic number.

2205947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2205947 is an equidigital number, since it uses as much as digits as its factorization.

2205947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 2205947 is about 1485.2430777486. The cubic root of 2205947 is about 130.1762304188.

The spelling of 2205947 in words is "two million, two hundred five thousand, nine hundred forty-seven".