7881004 has 12 divisors (see below), whose sum is σ = 13822704. Its totient is φ = 3931664.

The previous prime is 7880989. The next prime is 7881023. The reversal of 7881004 is 4001887.

It is a super-2 number, since 2×7881004² = 124220448096032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54 + ... + 3970.

It is an arithmetic number, because the mean of its divisors is an integer number (1151892).

Almost surely, 2^7881004 is an apocalyptic number.

It is an amenable number.

7881004 is a deficient number, since it is larger than the sum of its proper divisors (5941700).

7881004 is a wasteful number, since it uses less digits than its factorization.

7881004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424 (or 4422 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 7881004 is about 2807.3125939232. The cubic root of 7881004 is about 199.0034089464.

The spelling of 7881004 in words is "seven million, eight hundred eighty-one thousand, four".