422977 has 8 divisors (see below), whose sum is σ = 453600. Its totient is φ = 393024.

The previous prime is 422969. The next prime is 422987. The reversal of 422977 is 779224.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 422977 - 2³ = 422969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2274 + ... + 2452.

It is an arithmetic number, because the mean of its divisors is an integer number (56700).

2⁴²²⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

422977 is a deficient number, since it is larger than the sum of its proper divisors (30623).

422977 is a wasteful number, since it uses less digits than its factorization.

422977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335.

The product of its digits is 7056, while the sum is 31.

The square root of 422977 is about 650.3668195718. The cubic root of 422977 is about 75.0652469251.

The spelling of 422977 in words is "four hundred twenty-two thousand, nine hundred seventy-seven".