7220936 has 16 divisors (see below), whose sum is σ = 13762140. Its totient is φ = 3551040.

The previous prime is 7220933. The next prime is 7220953. The reversal of 7220936 is 6390227.

It can be written as a sum of positive squares in 2 ways, for example, as 6280036 + 940900 = 2506^2 + 970^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7220899 and 7220908.

It is not an unprimeable number, because it can be changed into a prime (7220933) 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, 6911 + ... + 7886.

Almost surely, 2^7220936 is an apocalyptic number.

It is an amenable number.

7220936 is a deficient number, since it is larger than the sum of its proper divisors (6541204).

7220936 is a wasteful number, since it uses less digits than its factorization.

7220936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14864 (or 14860 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 7220936 is about 2687.1799344294. The cubic root of 7220936 is about 193.2848577104.

The spelling of 7220936 in words is "seven million, two hundred twenty thousand, nine hundred thirty-six".