422055947 has 4 divisors (see below), whose sum is σ = 424265856. Its totient is φ = 419846040.

The previous prime is 422055919. The next prime is 422055973. The reversal of 422055947 is 749550224.

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 422055947 - 2⁸ = 422055691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422055947.

It is not an unprimeable number, because it can be changed into a prime (422055547) 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, 1104668 + ... + 1105049.

It is an arithmetic number, because the mean of its divisors is an integer number (106066464).

Almost surely, 2^422055947 is an apocalyptic number.

422055947 is a deficient number, since it is larger than the sum of its proper divisors (2209909).

422055947 is a wasteful number, since it uses less digits than its factorization.

422055947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209908.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 422055947 is about 20544.0002677181. Note that the first 3 decimals coincide. The cubic root of 422055947 is about 750.1072125251.

The spelling of 422055947 in words is "four hundred twenty-two million, fifty-five thousand, nine hundred forty-seven".