42046847 has 2 divisors, whose sum is σ = 42046848. Its totient is φ = 42046846.

The previous prime is 42046841. The next prime is 42046877. The reversal of 42046847 is 74864024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42046847 - 2¹⁰ = 42045823 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42046841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21023423 + 21023424.

It is an arithmetic number, because the mean of its divisors is an integer number (21023424).

Almost surely, 2^42046847 is an apocalyptic number.

42046847 is a deficient number, since it is larger than the sum of its proper divisors (1).

42046847 is an equidigital number, since it uses as much as digits as its factorization.

42046847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 42046847 is about 6484.3540156287. The cubic root of 42046847 is about 347.7318556895.

The spelling of 42046847 in words is "forty-two million, forty-six thousand, eight hundred forty-seven".