993139999 has 2 divisors, whose sum is σ = 993140000. Its totient is φ = 993139998.

The previous prime is 993139991. The next prime is 993140021. The reversal of 993139999 is 999931399.

It is a weak prime.

It is an emirp because it is prime and its reverse (999931399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 993139999 - 2³ = 993139991 is a prime.

It is a super-2 number, since 2×993139999² = 1972654115227440002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993139991) 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 as a sum of consecutive naturals, namely, 496569999 + 496570000.

It is an arithmetic number, because the mean of its divisors is an integer number (496570000).

Almost surely, 2^993139999 is an apocalyptic number.

993139999 is a deficient number, since it is larger than the sum of its proper divisors (1).

993139999 is an equidigital number, since it uses as much as digits as its factorization.

993139999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4782969, while the sum is 61.

The square root of 993139999 is about 31514.1238018765. The cubic root of 993139999 is about 997.7080841347.

The spelling of 993139999 in words is "nine hundred ninety-three million, one hundred thirty-nine thousand, nine hundred ninety-nine".