339612991 has 2 divisors, whose sum is σ = 339612992. Its totient is φ = 339612990.

The previous prime is 339612983. The next prime is 339613003. The reversal of 339612991 is 199216933.

It is a weak prime.

It is an emirp because it is prime and its reverse (199216933) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 339612991 - 2³ = 339612983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (339612191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169806495 + 169806496.

It is an arithmetic number, because the mean of its divisors is an integer number (169806496).

Almost surely, 2^339612991 is an apocalyptic number.

339612991 is a deficient number, since it is larger than the sum of its proper divisors (1).

339612991 is an equidigital number, since it uses as much as digits as its factorization.

339612991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78732, while the sum is 43.

The square root of 339612991 is about 18428.5916716389. The cubic root of 339612991 is about 697.6882863345.

The spelling of 339612991 in words is "three hundred thirty-nine million, six hundred twelve thousand, nine hundred ninety-one".