2122647 has 8 divisors (see below), whose sum is σ = 2953344. Its totient is φ = 1353528.

The previous prime is 2122633. The next prime is 2122649. The reversal of 2122647 is 7462212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2122647 - 2¹⁸ = 1860503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15313 + ... + 15450.

It is an arithmetic number, because the mean of its divisors is an integer number (369168).

2^2122647 is an apocalyptic number.

2122647 is a deficient number, since it is larger than the sum of its proper divisors (830697).

2122647 is a wasteful number, since it uses less digits than its factorization.

2122647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30789.

The product of its digits is 1344, while the sum is 24.

The square root of 2122647 is about 1456.9306778293. The cubic root of 2122647 is about 128.5166092577.

Adding to 2122647 its reverse (7462212), we get a palindrome (9584859).

The spelling of 2122647 in words is "two million, one hundred twenty-two thousand, six hundred forty-seven".