422631967 has 4 divisors (see below), whose sum is σ = 428421520. Its totient is φ = 416842416.

The previous prime is 422631961. The next prime is 422631971. The reversal of 422631967 is 769136224.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422631967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422631961) 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, 2894667 + ... + 2894812.

It is an arithmetic number, because the mean of its divisors is an integer number (107105380).

Almost surely, 2^422631967 is an apocalyptic number.

422631967 is a deficient number, since it is larger than the sum of its proper divisors (5789553).

422631967 is an equidigital number, since it uses as much as digits as its factorization.

422631967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789552.

The product of its digits is 108864, while the sum is 40.

The square root of 422631967 is about 20558.0146658183. The cubic root of 422631967 is about 750.4483050138.

The spelling of 422631967 in words is "four hundred twenty-two million, six hundred thirty-one thousand, nine hundred sixty-seven".