3649072771 has 2 divisors, whose sum is σ = 3649072772. Its totient is φ = 3649072770.

The previous prime is 3649072753. The next prime is 3649072807. The reversal of 3649072771 is 1772709463.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3649072771 is a prime.

It is not a weakly prime, because it can be changed into another prime (3649072711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824536385 + 1824536386.

It is an arithmetic number, because the mean of its divisors is an integer number (1824536386).

Almost surely, 2^3649072771 is an apocalyptic number.

3649072771 is a deficient number, since it is larger than the sum of its proper divisors (1).

3649072771 is an equidigital number, since it uses as much as digits as its factorization.

3649072771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 444528, while the sum is 46.

The square root of 3649072771 is about 60407.5555787519. Note that the first 4 decimals coincide. The cubic root of 3649072771 is about 1539.5513353973.

The spelling of 3649072771 in words is "three billion, six hundred forty-nine million, seventy-two thousand, seven hundred seventy-one".