2147969 has 4 divisors (see below), whose sum is σ = 2261040. Its totient is φ = 2034900.

The previous prime is 2147941. The next prime is 2147987. The reversal of 2147969 is 9697412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2147969 - 2¹² = 2143873 is a prime.

It is a super-2 number, since 2×2147969² = 9227541649922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2147909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56507 + ... + 56544.

It is an arithmetic number, because the mean of its divisors is an integer number (565260).

2^2147969 is an apocalyptic number.

It is an amenable number.

2147969 is a deficient number, since it is larger than the sum of its proper divisors (113071).

2147969 is a wasteful number, since it uses less digits than its factorization.

2147969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113070.

The product of its digits is 27216, while the sum is 38.

The square root of 2147969 is about 1465.5951009743. The cubic root of 2147969 is about 129.0256343905.

The spelling of 2147969 in words is "two million, one hundred forty-seven thousand, nine hundred sixty-nine".