7422819 has 4 divisors (see below), whose sum is σ = 9897096. Its totient is φ = 4948544.

The previous prime is 7422781. The next prime is 7422827. The reversal of 7422819 is 9182247.

It is a happy number.

7422819 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9182247 = 3 ⋅3060749.

It is a cyclic number.

It is not a de Polignac number, because 7422819 - 2⁷ = 7422691 is a prime.

It is a super-2 number, since 2×7422819² = 110196483813522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7422819.

It is not an unprimeable number, because it can be changed into a prime (7422839) 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 3 ways as a sum of consecutive naturals, for example, 1237134 + ... + 1237139.

It is an arithmetic number, because the mean of its divisors is an integer number (2474274).

Almost surely, 2^7422819 is an apocalyptic number.

7422819 is a deficient number, since it is larger than the sum of its proper divisors (2474277).

7422819 is a wasteful number, since it uses less digits than its factorization.

7422819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474276.

The product of its digits is 8064, while the sum is 33.

The square root of 7422819 is about 2724.4850889664. The cubic root of 7422819 is about 195.0696135413.

It can be divided in two parts, 74228 and 19, that added together give a palindrome (74247).

The spelling of 7422819 in words is "seven million, four hundred twenty-two thousand, eight hundred nineteen".