2122947 has 12 divisors (see below), whose sum is σ = 3090360. Its totient is φ = 1404288.

The previous prime is 2122937. The next prime is 2122957. The reversal of 2122947 is 7492212.

It is an interprime number because it is at equal distance from previous prime (2122937) and next prime (2122957).

It is not a de Polignac number, because 2122947 - 2⁸ = 2122691 is a prime.

It is a d-powerful number, because it can be written as 2 + 1 + 2¹³ + 2²¹ + 9³ + 4³ + 7⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 2122947.

It is not an unprimeable number, because it can be changed into a prime (2122937) 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, 403 + ... + 2099.

It is an arithmetic number, because the mean of its divisors is an integer number (257530).

2^2122947 is an apocalyptic number.

2122947 is a deficient number, since it is larger than the sum of its proper divisors (967413).

2122947 is a wasteful number, since it uses less digits than its factorization.

2122947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842 (or 1839 counting only the distinct ones).

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

The square root of 2122947 is about 1457.0336303600. The cubic root of 2122947 is about 128.5226635171.

The spelling of 2122947 in words is "two million, one hundred twenty-two thousand, nine hundred forty-seven".