7904819 has 16 divisors (see below), whose sum is σ = 8870400. Its totient is φ = 6997536.

The previous prime is 7904773. The next prime is 7904843. The reversal of 7904819 is 9184097.

It is not a de Polignac number, because 7904819 - 2²⁰ = 6856243 is a prime.

It is a super-2 number, since 2×7904819² = 124972326845522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7904119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44072 + ... + 44250.

It is an arithmetic number, because the mean of its divisors is an integer number (554400).

Almost surely, 2^7904819 is an apocalyptic number.

7904819 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

7904819 is a deficient number, since it is larger than the sum of its proper divisors (965581).

7904819 is a wasteful number, since it uses less digits than its factorization.

7904819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314.

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

The square root of 7904819 is about 2811.5509954472. The cubic root of 7904819 is about 199.2036584087.

The spelling of 7904819 in words is "seven million, nine hundred four thousand, eight hundred nineteen".