999994765 has 32 divisors (see below), whose sum is σ = 1518465024. Its totient is φ = 614053440.

The previous prime is 999994763. The next prime is 999994771. The reversal of 999994765 is 567499999.

It is not a de Polignac number, because 999994765 - 2¹ = 999994763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 999994765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999994763) 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, 6412 + ... + 45178.

It is an arithmetic number, because the mean of its divisors is an integer number (47452032).

Almost surely, 2^999994765 is an apocalyptic number.

It is an amenable number.

999994765 is a deficient number, since it is larger than the sum of its proper divisors (518470259).

999994765 is a wasteful number, since it uses less digits than its factorization.

999994765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38857.

The product of its digits is 49601160, while the sum is 67.

The square root of 999994765 is about 31622.6938289577. The cubic root of 999994765 is about 999.9982549970.

The spelling of 999994765 in words is "nine hundred ninety-nine million, nine hundred ninety-four thousand, seven hundred sixty-five".