7738222 has 4 divisors (see below), whose sum is σ = 11607336. Its totient is φ = 3869110.

The previous prime is 7738207. The next prime is 7738223. The reversal of 7738222 is 2228377.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7738223) 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 as a sum of consecutive naturals, namely, 1934554 + ... + 1934557.

It is an arithmetic number, because the mean of its divisors is an integer number (2901834).

Almost surely, 2^7738222 is an apocalyptic number.

7738222 is a deficient number, since it is larger than the sum of its proper divisors (3869114).

7738222 is a wasteful number, since it uses less digits than its factorization.

7738222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3869113.

The product of its digits is 9408, while the sum is 31.

The square root of 7738222 is about 2781.7659858442. The cubic root of 7738222 is about 197.7942800924.

The spelling of 7738222 in words is "seven million, seven hundred thirty-eight thousand, two hundred twenty-two".