2194047 has 12 divisors (see below), whose sum is σ = 3286920. Its totient is φ = 1462536.

The previous prime is 2194021. The next prime is 2194051. The reversal of 2194047 is 7404912.

It is a happy number.

It is not a de Polignac number, because 2194047 - 2⁸ = 2193791 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2194047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194447) 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, 4272 + ... + 4757.

It is an arithmetic number, because the mean of its divisors is an integer number (273910).

2^2194047 is an apocalyptic number.

2194047 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2194047 is a deficient number, since it is larger than the sum of its proper divisors (1092873).

2194047 is an frugal number, since it uses more digits than its factorization.

2194047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9044 (or 9032 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2194047 is about 1481.2315821640. The cubic root of 2194047 is about 129.9417293089.

Adding to 2194047 its reverse (7404912), we get a palindrome (9598959).

The spelling of 2194047 in words is "two million, one hundred ninety-four thousand, forty-seven".