7872922 has 8 divisors (see below), whose sum is σ = 11885076. Its totient is φ = 3911232.

The previous prime is 7872919. The next prime is 7872929. The reversal of 7872922 is 2292787.

It can be written as a sum of positive squares in 2 ways, for example, as 7678441 + 194481 = 2771^2 + 441^2 .

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

It is not an unprimeable number, because it can be changed into a prime (7872929) 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, 12223 + ... + 12850.

Almost surely, 2^7872922 is an apocalyptic number.

7872922 is a deficient number, since it is larger than the sum of its proper divisors (4012154).

7872922 is a wasteful number, since it uses less digits than its factorization.

7872922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25232.

The product of its digits is 28224, while the sum is 37.

The square root of 7872922 is about 2805.8727697456. The cubic root of 7872922 is about 198.9353594250.

The spelling of 7872922 in words is "seven million, eight hundred seventy-two thousand, nine hundred twenty-two".