3329939861 has 2 divisors, whose sum is σ = 3329939862. Its totient is φ = 3329939860.

The previous prime is 3329939857. The next prime is 3329939887. The reversal of 3329939861 is 1689399233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3026100100 + 303839761 = 55010^2 + 17431^2 .

It is an emirp because it is prime and its reverse (1689399233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3329939861 - 2² = 3329939857 is a prime.

It is a super-2 number, since 2×3329939861² = 22176998955753398642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3329939891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1664969930 + 1664969931.

It is an arithmetic number, because the mean of its divisors is an integer number (1664969931).

Almost surely, 2^3329939861 is an apocalyptic number.

It is an amenable number.

3329939861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3329939861 is an equidigital number, since it uses as much as digits as its factorization.

3329939861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1889568, while the sum is 53.

The square root of 3329939861 is about 57705.6311030388. The cubic root of 3329939861 is about 1493.2944926333.

The spelling of 3329939861 in words is "three billion, three hundred twenty-nine million, nine hundred thirty-nine thousand, eight hundred sixty-one".