422615 has 4 divisors (see below), whose sum is σ = 507144. Its totient is φ = 338088.

The previous prime is 422581. The next prime is 422621. The reversal of 422615 is 516224.

It is a happy number.

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 422615 - 2⁶ = 422551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422615.

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, 42257 + ... + 42266.

It is an arithmetic number, because the mean of its divisors is an integer number (126786).

2⁴²²⁶¹⁵ is an apocalyptic number.

422615 is a deficient number, since it is larger than the sum of its proper divisors (84529).

422615 is an equidigital number, since it uses as much as digits as its factorization.

422615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84528.

The product of its digits is 480, while the sum is 20.

The square root of 422615 is about 650.0884555197. The cubic root of 422615 is about 75.0438262370.

Adding to 422615 its reverse (516224), we get a palindrome (938839).

The spelling of 422615 in words is "four hundred twenty-two thousand, six hundred fifteen".