7220706 has 16 divisors (see below), whose sum is σ = 14907648. Its totient is φ = 2329200.

The previous prime is 7220701. The next prime is 7220711. The reversal of 7220706 is 6070227.

It is an interprime number because it is at equal distance from previous prime (7220701) and next prime (7220711).

It is not an unprimeable number, because it can be changed into a prime (7220701) 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 7 ways as a sum of consecutive naturals, for example, 19225 + ... + 19596.

It is an arithmetic number, because the mean of its divisors is an integer number (931728).

Almost surely, 2^7220706 is an apocalyptic number.

7220706 is an abundant number, since it is smaller than the sum of its proper divisors (7686942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7220706 is a wasteful number, since it uses less digits than its factorization.

7220706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38857.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 7220706 is about 2687.1371382942. The cubic root of 7220706 is about 193.2828055300.

The spelling of 7220706 in words is "seven million, two hundred twenty thousand, seven hundred six".