42046747 has 2 divisors, whose sum is σ = 42046748. Its totient is φ = 42046746.

The previous prime is 42046709. The next prime is 42046769. The reversal of 42046747 is 74764024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42046747 - 2⁷ = 42046619 is a prime.

It is not a weakly prime, because it can be changed into another prime (42046777) 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, 21023373 + 21023374.

It is an arithmetic number, because the mean of its divisors is an integer number (21023374).

Almost surely, 2^42046747 is an apocalyptic number.

42046747 is a deficient number, since it is larger than the sum of its proper divisors (1).

42046747 is an equidigital number, since it uses as much as digits as its factorization.

42046747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 42046747 is about 6484.3463047558. The cubic root of 42046747 is about 347.7315800191.

The spelling of 42046747 in words is "forty-two million, forty-six thousand, seven hundred forty-seven".