7722273 has 16 divisors (see below), whose sum is σ = 11571840. Its totient is φ = 4545024.

The previous prime is 7722271. The next prime is 7722277. The reversal of 7722273 is 3722277.

It is not a de Polignac number, because 7722273 - 2¹ = 7722271 is a prime.

It is a Curzon number.

7722273 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7722273.

It is not an unprimeable number, because it can be changed into a prime (7722271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3408 + ... + 5201.

It is an arithmetic number, because the mean of its divisors is an integer number (723240).

Almost surely, 2^7722273 is an apocalyptic number.

It is an amenable number.

7722273 is a deficient number, since it is larger than the sum of its proper divisors (3849567).

7722273 is a wasteful number, since it uses less digits than its factorization.

7722273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8648.

The product of its digits is 8232, while the sum is 30.

The square root of 7722273 is about 2778.8978030867. The cubic root of 7722273 is about 197.6582974875.

The spelling of 7722273 in words is "seven million, seven hundred twenty-two thousand, two hundred seventy-three".