2772647 has 2 divisors, whose sum is σ = 2772648. Its totient is φ = 2772646.

The previous prime is 2772643. The next prime is 2772697. The reversal of 2772647 is 7462772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2772647 - 2² = 2772643 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2772643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1386323 + 1386324.

It is an arithmetic number, because the mean of its divisors is an integer number (1386324).

2^2772647 is an apocalyptic number.

2772647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2772647 is an equidigital number, since it uses as much as digits as its factorization.

2772647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32928, while the sum is 35.

The square root of 2772647 is about 1665.1267219044. The cubic root of 2772647 is about 140.4855082295.

The spelling of 2772647 in words is "two million, seven hundred seventy-two thousand, six hundred forty-seven".