7445223 has 16 divisors (see below), whose sum is σ = 11266560. Its totient is φ = 4857048.

The previous prime is 7445219. The next prime is 7445237. The reversal of 7445223 is 3225447.

It is not a de Polignac number, because 7445223 - 2² = 7445219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7445203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1665 + ... + 4202.

It is an arithmetic number, because the mean of its divisors is an integer number (704160).

Almost surely, 2^7445223 is an apocalyptic number.

7445223 is a deficient number, since it is larger than the sum of its proper divisors (3821337).

7445223 is a wasteful number, since it uses less digits than its factorization.

7445223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5923 (or 5917 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 7445223 is about 2728.5935937768. The cubic root of 7445223 is about 195.2656733778.

The spelling of 7445223 in words is "seven million, four hundred forty-five thousand, two hundred twenty-three".