7904086 has 4 divisors (see below), whose sum is σ = 11856132. Its totient is φ = 3952042.

The previous prime is 7904069. The next prime is 7904087. The reversal of 7904086 is 6804097.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7904087) 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 as a sum of consecutive naturals, namely, 1976020 + ... + 1976023.

It is an arithmetic number, because the mean of its divisors is an integer number (2964033).

Almost surely, 2^7904086 is an apocalyptic number.

7904086 is a deficient number, since it is larger than the sum of its proper divisors (3952046).

7904086 is a wasteful number, since it uses less digits than its factorization.

7904086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952045.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 7904086 is about 2811.4206373291. The cubic root of 7904086 is about 199.1975009498.

The spelling of 7904086 in words is "seven million, nine hundred four thousand, eighty-six".