42422847 has 4 divisors (see below), whose sum is σ = 56563800. Its totient is φ = 28281896.

The previous prime is 42422789. The next prime is 42422857. The reversal of 42422847 is 74822424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42422847 - 2⁷ = 42422719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42422857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7070472 + ... + 7070477.

It is an arithmetic number, because the mean of its divisors is an integer number (14140950).

Almost surely, 2^42422847 is an apocalyptic number.

42422847 is a deficient number, since it is larger than the sum of its proper divisors (14140953).

42422847 is a wasteful number, since it uses less digits than its factorization.

42422847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14140952.

The product of its digits is 28672, while the sum is 33.

The square root of 42422847 is about 6513.2823522399. The cubic root of 42422847 is about 348.7653011619.

The spelling of 42422847 in words is "forty-two million, four hundred twenty-two thousand, eight hundred forty-seven".