2647969 has 2 divisors, whose sum is σ = 2647970. Its totient is φ = 2647968.

The previous prime is 2647951. The next prime is 2647987. The reversal of 2647969 is 9697462.

It is a balanced prime because it is at equal distance from previous prime (2647951) and next prime (2647987).

It can be written as a sum of positive squares in only one way, i.e., 2433600 + 214369 = 1560^2 + 463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2647969 is a prime.

It is a super-2 number, since 2×2647969² = 14023479649922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2647919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323984 + 1323985.

It is an arithmetic number, because the mean of its divisors is an integer number (1323985).

2^2647969 is an apocalyptic number.

It is an amenable number.

2647969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2647969 is an equidigital number, since it uses as much as digits as its factorization.

2647969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 2647969 is about 1627.2581233474. The cubic root of 2647969 is about 138.3473884527.

The spelling of 2647969 in words is "two million, six hundred forty-seven thousand, nine hundred sixty-nine".