7730222 has 16 divisors (see below), whose sum is σ = 12265344. Its totient is φ = 3648000.

The previous prime is 7730213. The next prime is 7730243. The reversal of 7730222 is 2220377.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022 + ... + 4062.

It is an arithmetic number, because the mean of its divisors is an integer number (766584).

Almost surely, 2^7730222 is an apocalyptic number.

7730222 is a deficient number, since it is larger than the sum of its proper divisors (4535122).

7730222 is a wasteful number, since it uses less digits than its factorization.

7730222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 7730222 is about 2780.3276785300. The cubic root of 7730222 is about 197.7260947543.

Adding to 7730222 its reverse (2220377), we get a palindrome (9950599).

The spelling of 7730222 in words is "seven million, seven hundred thirty thousand, two hundred twenty-two".