6415223 has 4 divisors (see below), whose sum is σ = 6421080. Its totient is φ = 6409368.

The previous prime is 6415219. The next prime is 6415237. The reversal of 6415223 is 3225146.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6415223 - 2² = 6415219 is a prime.

It is a super-2 number, since 2×6415223² = 82310172279458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6415243) 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, 740 + ... + 3657.

It is an arithmetic number, because the mean of its divisors is an integer number (1605270).

Almost surely, 2^6415223 is an apocalyptic number.

6415223 is a deficient number, since it is larger than the sum of its proper divisors (5857).

6415223 is a wasteful number, since it uses less digits than its factorization.

6415223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5856.

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

The square root of 6415223 is about 2532.8290506862. The cubic root of 6415223 is about 185.8106428399.

The spelling of 6415223 in words is "six million, four hundred fifteen thousand, two hundred twenty-three".