7220939 has 8 divisors (see below), whose sum is σ = 8045568. Its totient is φ = 6424360.

The previous prime is 7220933. The next prime is 7220953. The reversal of 7220939 is 9390227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7220939 - 2¹⁶ = 7155403 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 6467 + ... + 7500.

It is an arithmetic number, because the mean of its divisors is an integer number (1005696).

Almost surely, 2^7220939 is an apocalyptic number.

7220939 is a deficient number, since it is larger than the sum of its proper divisors (824629).

7220939 is a wasteful number, since it uses less digits than its factorization.

7220939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14025.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 7220939 is about 2687.1804926354. The cubic root of 7220939 is about 193.2848844776.

The spelling of 7220939 in words is "seven million, two hundred twenty thousand, nine hundred thirty-nine".