7800223 has 4 divisors (see below), whose sum is σ = 7899040. Its totient is φ = 7701408.

The previous prime is 7800211. The next prime is 7800259. The reversal of 7800223 is 3220087.

It is a happy number.

7800223 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7800223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7800194 and 7800203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7800323) 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, 49290 + ... + 49447.

It is an arithmetic number, because the mean of its divisors is an integer number (1974760).

Almost surely, 2^7800223 is an apocalyptic number.

7800223 is a deficient number, since it is larger than the sum of its proper divisors (98817).

7800223 is an equidigital number, since it uses as much as digits as its factorization.

7800223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98816.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 7800223 is about 2792.8879318727. The cubic root of 7800223 is about 198.3211382156.

The spelling of 7800223 in words is "seven million, eight hundred thousand, two hundred twenty-three".