2299947 has 16 divisors (see below), whose sum is σ = 3497760. Its totient is φ = 1331712.

The previous prime is 2299939. The next prime is 2299949. The reversal of 2299947 is 7499922.

It is not a de Polignac number, because 2299947 - 2³ = 2299939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2299899 and 2299908.

It is not an unprimeable number, because it can be changed into a prime (2299949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1072 + ... + 2397.

It is an arithmetic number, because the mean of its divisors is an integer number (218610).

2^2299947 is an apocalyptic number.

2299947 is a deficient number, since it is larger than the sum of its proper divisors (1197813).

2299947 is a wasteful number, since it uses less digits than its factorization.

2299947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3502.

The product of its digits is 81648, while the sum is 42.

The square root of 2299947 is about 1516.5576151271. The cubic root of 2299947 is about 131.9995982541. Note that the first 3 decimals are identical.

The spelling of 2299947 in words is "two million, two hundred ninety-nine thousand, nine hundred forty-seven".