7812022 has 8 divisors (see below), whose sum is σ = 11878776. Its totient is φ = 3852432.

The previous prime is 7812001. The next prime is 7812023. The reversal of 7812022 is 2202187.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7812022² = 122055375456968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7811984 and 7812002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7812023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26608 + ... + 26899.

It is an arithmetic number, because the mean of its divisors is an integer number (1484847).

Almost surely, 2^7812022 is an apocalyptic number.

7812022 is a deficient number, since it is larger than the sum of its proper divisors (4066754).

7812022 is a wasteful number, since it uses less digits than its factorization.

7812022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53582.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 7812022 is about 2794.9994633273. Note that the first 3 decimals coincide. The cubic root of 7812022 is about 198.4210845991.

It can be divided in two parts, 78 and 12022, that added together give a square (12100 = 110²).

The spelling of 7812022 in words is "seven million, eight hundred twelve thousand, twenty-two".