999761163 has 4 divisors (see below), whose sum is σ = 1333014888. Its totient is φ = 666507440.

The previous prime is 999761123. The next prime is 999761183. The reversal of 999761163 is 361167999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361167999 = 3 ⋅120389333.

It is a cyclic number.

It is not a de Polignac number, because 999761163 - 2¹⁷ = 999630091 is a prime.

It is a super-2 number, since 2×999761163² = 1999044766086225138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (999761123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166626858 + ... + 166626863.

It is an arithmetic number, because the mean of its divisors is an integer number (333253722).

Almost surely, 2^999761163 is an apocalyptic number.

999761163 is a deficient number, since it is larger than the sum of its proper divisors (333253725).

999761163 is a wasteful number, since it uses less digits than its factorization.

999761163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333253724.

The product of its digits is 551124, while the sum is 51.

The square root of 999761163 is about 31619.0000316266. Note that the first 4 decimals coincide. The cubic root of 999761163 is about 999.9203813277.

The spelling of 999761163 in words is "nine hundred ninety-nine million, seven hundred sixty-one thousand, one hundred sixty-three".