999996766 has 8 divisors (see below), whose sum is σ = 1505832480. Its totient is φ = 498052608.

The previous prime is 999996749. The next prime is 999996779. The reversal of 999996766 is 667699999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 999996695 and 999996704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972246 + ... + 973273.

It is an arithmetic number, because the mean of its divisors is an integer number (188229060).

Almost surely, 2^999996766 is an apocalyptic number.

999996766 is a deficient number, since it is larger than the sum of its proper divisors (505835714).

999996766 is a wasteful number, since it uses less digits than its factorization.

999996766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945778.

The product of its digits is 89282088, while the sum is 70.

The square root of 999996766 is about 31622.7254676127. The cubic root of 999996766 is about 999.9989219988.

The spelling of 999996766 in words is "nine hundred ninety-nine million, nine hundred ninety-six thousand, seven hundred sixty-six".