7722236 has 12 divisors (see below), whose sum is σ = 13980120. Its totient is φ = 3727920.

The previous prime is 7722229. The next prime is 7722251. The reversal of 7722236 is 6322277.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7722199 and 7722208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33170 + ... + 33401.

It is an arithmetic number, because the mean of its divisors is an integer number (1165010).

Almost surely, 2^7722236 is an apocalyptic number.

It is an amenable number.

7722236 is a deficient number, since it is larger than the sum of its proper divisors (6257884).

7722236 is a wasteful number, since it uses less digits than its factorization.

7722236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66604 (or 66602 counting only the distinct ones).

The product of its digits is 7056, while the sum is 29.

The square root of 7722236 is about 2778.8911457630. The cubic root of 7722236 is about 197.6579818046.

The spelling of 7722236 in words is "seven million, seven hundred twenty-two thousand, two hundred thirty-six".