7904785 has 16 divisors (see below), whose sum is σ = 10996992. Its totient is φ = 5342400.

The previous prime is 7904773. The next prime is 7904843. The reversal of 7904785 is 5874097.

It is not a de Polignac number, because 7904785 - 2⁵ = 7904753 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 895 + ... + 4075.

It is an arithmetic number, because the mean of its divisors is an integer number (687312).

Almost surely, 2^7904785 is an apocalyptic number.

It is an amenable number.

7904785 is a deficient number, since it is larger than the sum of its proper divisors (3092207).

7904785 is a wasteful number, since it uses less digits than its factorization.

7904785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3264.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 7904785 is about 2811.5449489560. The cubic root of 7904785 is about 199.2033728052.

The spelling of 7904785 in words is "seven million, nine hundred four thousand, seven hundred eighty-five".