999413383 has 4 divisors (see below), whose sum is σ = 999477280. Its totient is φ = 999349488.

The previous prime is 999413381. The next prime is 999413431. The reversal of 999413383 is 383314999.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 383314999 = 83 ⋅4618253.

It is a cyclic number.

It is not a de Polignac number, because 999413383 - 2¹ = 999413381 is a prime.

It is a super-2 number, since 2×999413383² = 1997654220239009378, which contains 22 as substring.

It is the 31614-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999413381) by changing a digit.

It is a nontrivial repunit in base 31613.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9058 + ... + 45616.

It is an arithmetic number, because the mean of its divisors is an integer number (249869320).

Almost surely, 2^999413383 is an apocalyptic number.

999413383 is a deficient number, since it is larger than the sum of its proper divisors (63897).

999413383 is a wasteful number, since it uses less digits than its factorization.

999413383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63896.

The product of its digits is 629856, while the sum is 49.

The square root of 999413383 is about 31613.5000118620. The cubic root of 999413383 is about 999.8044227520.

The spelling of 999413383 in words is "nine hundred ninety-nine million, four hundred thirteen thousand, three hundred eighty-three".