7220707 has 4 divisors (see below), whose sum is σ = 7776160. Its totient is φ = 6665256.

The previous prime is 7220701. The next prime is 7220711. The reversal of 7220707 is 7070227.

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

It is a de Polignac number, because none of the positive numbers 2^k-7220707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7220701) 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, 277707 + ... + 277732.

It is an arithmetic number, because the mean of its divisors is an integer number (1944040).

Almost surely, 2^7220707 is an apocalyptic number.

7220707 is a deficient number, since it is larger than the sum of its proper divisors (555453).

7220707 is a wasteful number, since it uses less digits than its factorization.

7220707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555452.

The product of its (nonzero) digits is 1372, while the sum is 25.

The square root of 7220707 is about 2687.1373243658. The cubic root of 7220707 is about 193.2828144526.

The spelling of 7220707 in words is "seven million, two hundred twenty thousand, seven hundred seven".