42727847 has 2 divisors, whose sum is σ = 42727848. Its totient is φ = 42727846.

The previous prime is 42727831. The next prime is 42727879. The reversal of 42727847 is 74872724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42727847 - 2⁴ = 42727831 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 (42727807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21363923 + 21363924.

It is an arithmetic number, because the mean of its divisors is an integer number (21363924).

Almost surely, 2^42727847 is an apocalyptic number.

42727847 is a deficient number, since it is larger than the sum of its proper divisors (1).

42727847 is an equidigital number, since it uses as much as digits as its factorization.

42727847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 175616, while the sum is 41.

The square root of 42727847 is about 6536.6541135355. The cubic root of 42727847 is about 349.5991247030.

The spelling of 42727847 in words is "forty-two million, seven hundred twenty-seven thousand, eight hundred forty-seven".