7722126 has 12 divisors (see below), whose sum is σ = 16731312. Its totient is φ = 2574036.

The previous prime is 7722119. The next prime is 7722139. The reversal of 7722126 is 6212277.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7722126.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 214486 + ... + 214521.

It is an arithmetic number, because the mean of its divisors is an integer number (1394276).

Almost surely, 2^7722126 is an apocalyptic number.

7722126 is an abundant number, since it is smaller than the sum of its proper divisors (9009186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7722126 is a wasteful number, since it uses less digits than its factorization.

7722126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429015 (or 429012 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 7722126 is about 2778.8713536254. The cubic root of 7722126 is about 197.6570432819.

The spelling of 7722126 in words is "seven million, seven hundred twenty-two thousand, one hundred twenty-six".