2042647 has 2 divisors, whose sum is σ = 2042648. Its totient is φ = 2042646.

The previous prime is 2042627. The next prime is 2042657. The reversal of 2042647 is 7462402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2042647 - 2¹⁵ = 2009879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2042627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021323 + 1021324.

It is an arithmetic number, because the mean of its divisors is an integer number (1021324).

2^2042647 is an apocalyptic number.

2042647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042647 is an equidigital number, since it uses as much as digits as its factorization.

2042647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 2042647 is about 1429.2120206603. The cubic root of 2042647 is about 126.8813449390.

The spelling of 2042647 in words is "two million, forty-two thousand, six hundred forty-seven".