9394394865 has 32 divisors (see below), whose sum is σ = 15827978880. Its totient is φ = 4744889856.

The previous prime is 9394394861. The next prime is 9394394909. The reversal of 9394394865 is 5684934939.

It is not a de Polignac number, because 9394394865 - 2² = 9394394861 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9394394799 and 9394394808.

It is not an unprimeable number, because it can be changed into a prime (9394394861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1156759 + ... + 1164851.

It is an arithmetic number, because the mean of its divisors is an integer number (494624340).

Almost surely, 2^9394394865 is an apocalyptic number.

9394394865 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9394394865 is a deficient number, since it is larger than the sum of its proper divisors (6433584015).

9394394865 is a wasteful number, since it uses less digits than its factorization.

9394394865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12193.

The product of its digits is 25194240, while the sum is 60.

The square root of 9394394865 is about 96924.6865612678. The cubic root of 9394394865 is about 2110.0347294809.

The spelling of 9394394865 in words is "nine billion, three hundred ninety-four million, three hundred ninety-four thousand, eight hundred sixty-five".