339721117 has 2 divisors, whose sum is σ = 339721118. Its totient is φ = 339721116.

The previous prime is 339721111. The next prime is 339721133. The reversal of 339721117 is 711127933.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246521401 + 93199716 = 15701^2 + 9654^2 .

It is a cyclic number.

It is not a de Polignac number, because 339721117 - 2⁷ = 339720989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (339721111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169860558 + 169860559.

It is an arithmetic number, because the mean of its divisors is an integer number (169860559).

Almost surely, 2^339721117 is an apocalyptic number.

It is an amenable number.

339721117 is a deficient number, since it is larger than the sum of its proper divisors (1).

339721117 is an equidigital number, since it uses as much as digits as its factorization.

339721117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7938, while the sum is 34.

The square root of 339721117 is about 18431.5250861127. The cubic root of 339721117 is about 697.7623218210.

The spelling of 339721117 in words is "three hundred thirty-nine million, seven hundred twenty-one thousand, one hundred seventeen".