4215623 has 4 divisors (see below), whose sum is σ = 4222680. Its totient is φ = 4208568.

The previous prime is 4215619. The next prime is 4215641. The reversal of 4215623 is 3265124.

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 4215623 - 2² = 4215619 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 (4215613) 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, 2540 + ... + 3857.

It is an arithmetic number, because the mean of its divisors is an integer number (1055670).

Almost surely, 2^4215623 is an apocalyptic number.

4215623 is a deficient number, since it is larger than the sum of its proper divisors (7057).

4215623 is an equidigital number, since it uses as much as digits as its factorization.

4215623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7056.

The product of its digits is 1440, while the sum is 23.

The square root of 4215623 is about 2053.1982368977. The cubic root of 4215623 is about 161.5426694119.

The spelling of 4215623 in words is "four million, two hundred fifteen thousand, six hundred twenty-three".