2647279 has 2 divisors, whose sum is σ = 2647280. Its totient is φ = 2647278.

The previous prime is 2647259. The next prime is 2647303. The reversal of 2647279 is 9727462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2647279 - 2¹⁵ = 2614511 is a prime.

It is a super-2 number, since 2×2647279² = 14016172207682, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁹ + 6 + 4³ + 7⁴ + 2²¹ + 7⁵ + 9⁴ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2647259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323639 + 1323640.

It is an arithmetic number, because the mean of its divisors is an integer number (1323640).

2^2647279 is an apocalyptic number.

2647279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2647279 is an equidigital number, since it uses as much as digits as its factorization.

2647279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 37.

The square root of 2647279 is about 1627.0460964582. The cubic root of 2647279 is about 138.3353706898.

It can be divided in two parts, 2647 and 279, that added together give a triangular number (2926 = T₇₆).

The spelling of 2647279 in words is "two million, six hundred forty-seven thousand, two hundred seventy-nine".