7220013 has 4 divisors (see below), whose sum is σ = 9626688. Its totient is φ = 4813340.

The previous prime is 7219997. The next prime is 7220027. The reversal of 7220013 is 3100227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7220013 - 2⁴ = 7219997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7219974 and 7220001.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1203333 + ... + 1203338.

It is an arithmetic number, because the mean of its divisors is an integer number (2406672).

Almost surely, 2^7220013 is an apocalyptic number.

It is an amenable number.

7220013 is a deficient number, since it is larger than the sum of its proper divisors (2406675).

7220013 is a wasteful number, since it uses less digits than its factorization.

7220013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406674.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 7220013 is about 2687.0081875573. The cubic root of 7220013 is about 193.2766219578.

The spelling of 7220013 in words is "seven million, two hundred twenty thousand, thirteen".