2642971 has 2 divisors, whose sum is σ = 2642972. Its totient is φ = 2642970.

The previous prime is 2642933. The next prime is 2642987. The reversal of 2642971 is 1792462.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2642971 is a prime.

It is not a weakly prime, because it can be changed into another prime (2642771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321485 + 1321486.

It is an arithmetic number, because the mean of its divisors is an integer number (1321486).

2^2642971 is an apocalyptic number.

2642971 is a deficient number, since it is larger than the sum of its proper divisors (1).

2642971 is an equidigital number, since it uses as much as digits as its factorization.

2642971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 2642971 is about 1625.7216858983. The cubic root of 2642971 is about 138.2602907885.

The spelling of 2642971 in words is "two million, six hundred forty-two thousand, nine hundred seventy-one".