2194947 has 12 divisors (see below), whose sum is σ = 3238560. Its totient is φ = 1431888.

The previous prime is 2194939. The next prime is 2194961. The reversal of 2194947 is 7494912.

It is not a de Polignac number, because 2194947 - 2³ = 2194939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2194967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2172 + ... + 3017.

It is an arithmetic number, because the mean of its divisors is an integer number (269880).

2^2194947 is an apocalyptic number.

2194947 is a deficient number, since it is larger than the sum of its proper divisors (1043613).

2194947 is a wasteful number, since it uses less digits than its factorization.

2194947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5242 (or 5239 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2194947 is about 1481.5353522613. The cubic root of 2194947 is about 129.9594942838.

The spelling of 2194947 in words is "two million, one hundred ninety-four thousand, nine hundred forty-seven".