999213413 has 16 divisors (see below), whose sum is σ = 1105617600. Its totient is φ = 895466880.

The previous prime is 999213407. The next prime is 999213431. The reversal of 999213413 is 314312999.

It is not a de Polignac number, because 999213413 - 2⁶ = 999213349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999213463) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 369695 + ... + 372387.

It is an arithmetic number, because the mean of its divisors is an integer number (69101100).

Almost surely, 2^999213413 is an apocalyptic number.

It is an amenable number.

999213413 is a deficient number, since it is larger than the sum of its proper divisors (106404187).

999213413 is a wasteful number, since it uses less digits than its factorization.

999213413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172.

The product of its digits is 52488, while the sum is 41.

The square root of 999213413 is about 31610.3371225300. The cubic root of 999213413 is about 999.7377355567.

It can be divided in two parts, 999 and 213413, that added together give a palindrome (214412).

The spelling of 999213413 in words is "nine hundred ninety-nine million, two hundred thirteen thousand, four hundred thirteen".