2748806647 has 2 divisors, whose sum is σ = 2748806648. Its totient is φ = 2748806646.

The previous prime is 2748806639. The next prime is 2748806657. The reversal of 2748806647 is 7466088472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2748806647 - 2³ = 2748806639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2748806594 and 2748806603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2748806617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374403323 + 1374403324.

It is an arithmetic number, because the mean of its divisors is an integer number (1374403324).

Almost surely, 2^2748806647 is an apocalyptic number.

2748806647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2748806647 is an equidigital number, since it uses as much as digits as its factorization.

2748806647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3612672, while the sum is 52.

The square root of 2748806647 is about 52429.0629994472. The cubic root of 2748806647 is about 1400.8169801254.

The spelling of 2748806647 in words is "two billion, seven hundred forty-eight million, eight hundred six thousand, six hundred forty-seven".