339988949 has 2 divisors, whose sum is σ = 339988950. Its totient is φ = 339988948.

The previous prime is 339988937. The next prime is 339988951. The reversal of 339988949 is 949889933.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323748049 + 16240900 = 17993^2 + 4030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-339988949 is a prime.

Together with 339988951, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 339988891 and 339988900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (339288949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169994474 + 169994475.

It is an arithmetic number, because the mean of its divisors is an integer number (169994475).

Almost surely, 2^339988949 is an apocalyptic number.

It is an amenable number.

339988949 is a deficient number, since it is larger than the sum of its proper divisors (1).

339988949 is an equidigital number, since it uses as much as digits as its factorization.

339988949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15116544, while the sum is 62.

The square root of 339988949 is about 18438.7892498396. The cubic root of 339988949 is about 697.9456427650.

The spelling of 339988949 in words is "three hundred thirty-nine million, nine hundred eighty-eight thousand, nine hundred forty-nine".