667772422 has 8 divisors (see below), whose sum is σ = 1002575016. Its totient is φ = 333580752.

The previous prime is 667772407. The next prime is 667772447. The reversal of 667772422 is 224277766.

667772422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149988 + ... + 154375.

It is an arithmetic number, because the mean of its divisors is an integer number (125321877).

Almost surely, 2^667772422 is an apocalyptic number.

667772422 is a deficient number, since it is larger than the sum of its proper divisors (334802594).

667772422 is a wasteful number, since it uses less digits than its factorization.

667772422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305462.

The product of its digits is 395136, while the sum is 43.

The square root of 667772422 is about 25841.2929630079. The cubic root of 667772422 is about 874.0631810805.

The spelling of 667772422 in words is "six hundred sixty-seven million, seven hundred seventy-two thousand, four hundred twenty-two".