7922819 has 8 divisors (see below), whose sum is σ = 8098560. Its totient is φ = 7749000.

The previous prime is 7922813. The next prime is 7922821. The reversal of 7922819 is 9182297.

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

It is a cyclic number.

It is not a de Polignac number, because 7922819 - 2²⁰ = 6874243 is a prime.

It is a super-2 number, since 2×7922819² = 125542121813522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7922813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10352 + ... + 11090.

It is an arithmetic number, because the mean of its divisors is an integer number (1012320).

Almost surely, 2^7922819 is an apocalyptic number.

7922819 is a deficient number, since it is larger than the sum of its proper divisors (175741).

7922819 is a wasteful number, since it uses less digits than its factorization.

7922819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961.

The product of its digits is 18144, while the sum is 38.

The square root of 7922819 is about 2814.7502553513. The cubic root of 7922819 is about 199.3547454718.

The spelling of 7922819 in words is "seven million, nine hundred twenty-two thousand, eight hundred nineteen".