2971663 has 2 divisors, whose sum is σ = 2971664. Its totient is φ = 2971662.

The previous prime is 2971607. The next prime is 2971693. The reversal of 2971663 is 3661792.

2971663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2971663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2971603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1485831 + 1485832.

It is an arithmetic number, because the mean of its divisors is an integer number (1485832).

2^2971663 is an apocalyptic number.

2971663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2971663 is an equidigital number, since it uses as much as digits as its factorization.

2971663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 2971663 is about 1723.8512116769. The cubic root of 2971663 is about 143.7694194307.

The spelling of 2971663 in words is "two million, nine hundred seventy-one thousand, six hundred sixty-three".