7904851 has 4 divisors (see below), whose sum is σ = 7939600. Its totient is φ = 7870104.

The previous prime is 7904843. The next prime is 7904857. The reversal of 7904851 is 1584097.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1584097 = 109 ⋅14533.

It is a cyclic number.

It is not a de Polignac number, because 7904851 - 2³ = 7904843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7904857) 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 3 ways as a sum of consecutive naturals, for example, 17031 + ... + 17488.

It is an arithmetic number, because the mean of its divisors is an integer number (1984900).

Almost surely, 2^7904851 is an apocalyptic number.

7904851 is a deficient number, since it is larger than the sum of its proper divisors (34749).

7904851 is a wasteful number, since it uses less digits than its factorization.

7904851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34748.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 7904851 is about 2811.5566862505. The cubic root of 7904851 is about 199.2039272114.

The spelling of 7904851 in words is "seven million, nine hundred four thousand, eight hundred fifty-one".