2212947 has 16 divisors (see below), whose sum is σ = 3576960. Its totient is φ = 1341000.

The previous prime is 2212939. The next prime is 2212963. The reversal of 2212947 is 7492122.

It is not a de Polignac number, because 2212947 - 2³ = 2212939 is a prime.

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

2212947 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2212947.

It is not an unprimeable number, because it can be changed into a prime (2212967) 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, 3429 + ... + 4022.

It is an arithmetic number, because the mean of its divisors is an integer number (223560).

2^2212947 is an apocalyptic number.

2212947 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2212947 is a deficient number, since it is larger than the sum of its proper divisors (1364013).

2212947 is a wasteful number, since it uses less digits than its factorization.

2212947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7471 (or 7465 counting only the distinct ones).

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

The square root of 2212947 is about 1487.5977278821. The cubic root of 2212947 is about 130.3137785186.

The spelling of 2212947 in words is "two million, two hundred twelve thousand, nine hundred forty-seven".