42822347 has 4 divisors (see below), whose sum is σ = 43001760. Its totient is φ = 42642936.

The previous prime is 42822331. The next prime is 42822359. The reversal of 42822347 is 74322824.

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 42822347 - 2⁴ = 42822331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42822547) 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, 89348 + ... + 89825.

It is an arithmetic number, because the mean of its divisors is an integer number (10750440).

Almost surely, 2^42822347 is an apocalyptic number.

42822347 is a deficient number, since it is larger than the sum of its proper divisors (179413).

42822347 is a wasteful number, since it uses less digits than its factorization.

42822347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179412.

The product of its digits is 21504, while the sum is 32.

The square root of 42822347 is about 6543.8785899495. The cubic root of 42822347 is about 349.8566678412.

The spelling of 42822347 in words is "forty-two million, eight hundred twenty-two thousand, three hundred forty-seven".