422691 has 4 divisors (see below), whose sum is σ = 563592. Its totient is φ = 281792.

The previous prime is 422689. The next prime is 422701. The reversal of 422691 is 196224.

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 422691 - 2¹ = 422689 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (422621) 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, 70446 + ... + 70451.

It is an arithmetic number, because the mean of its divisors is an integer number (140898).

2⁴²²⁶⁹¹ is an apocalyptic number.

422691 is a deficient number, since it is larger than the sum of its proper divisors (140901).

422691 is a wasteful number, since it uses less digits than its factorization.

422691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140900.

The product of its digits is 864, while the sum is 24.

The square root of 422691 is about 650.1469064758. The cubic root of 422691 is about 75.0483244122.

The spelling of 422691 in words is "four hundred twenty-two thousand, six hundred ninety-one".