7864903305 has 64 divisors (see below), whose sum is σ = 15990566400. Its totient is φ = 3592892160.

The previous prime is 7864903289. The next prime is 7864903309. The reversal of 7864903305 is 5033094687.

It is not a de Polignac number, because 7864903305 - 2⁴ = 7864903289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (7864903309) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2702191 + ... + 2705099.

It is an arithmetic number, because the mean of its divisors is an integer number (249852600).

Almost surely, 2^7864903305 is an apocalyptic number.

It is an amenable number.

7864903305 is an abundant number, since it is smaller than the sum of its proper divisors (8125663095).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7864903305 is a wasteful number, since it uses less digits than its factorization.

7864903305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5791 (or 5785 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 7864903305 is about 88684.2900687602. The cubic root of 7864903305 is about 1988.6779688346.

The spelling of 7864903305 in words is "seven billion, eight hundred sixty-four million, nine hundred three thousand, three hundred five".