7220003 has 6 divisors (see below), whose sum is σ = 8398836. Its totient is φ = 6188532.

The previous prime is 7219997. The next prime is 7220027. The reversal of 7220003 is 3000227.

It is not a de Polignac number, because 7220003 - 2⁶ = 7219939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7220003.

It is not an unprimeable number, because it can be changed into a prime (7220033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73625 + ... + 73722.

It is an arithmetic number, because the mean of its divisors is an integer number (1399806).

Almost surely, 2^7220003 is an apocalyptic number.

7220003 is a deficient number, since it is larger than the sum of its proper divisors (1178833).

7220003 is a wasteful number, since it uses less digits than its factorization.

7220003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147361 (or 147354 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 7220003 is about 2687.0063267510. The cubic root of 7220003 is about 193.2765327259.

The spelling of 7220003 in words is "seven million, two hundred twenty thousand, three".