3309436981 has 2 divisors, whose sum is σ = 3309436982. Its totient is φ = 3309436980.

The previous prime is 3309436943. The next prime is 3309437009. The reversal of 3309436981 is 1896349033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3245580900 + 63856081 = 56970^2 + 7991^2 .

It is a cyclic number.

It is not a de Polignac number, because 3309436981 - 2⁹ = 3309436469 is a prime.

It is a super-3 number, since 3×3309436981³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3309436931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1654718490 + 1654718491.

It is an arithmetic number, because the mean of its divisors is an integer number (1654718491).

Almost surely, 2^3309436981 is an apocalyptic number.

It is an amenable number.

3309436981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3309436981 is an equidigital number, since it uses as much as digits as its factorization.

3309436981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 3309436981 is about 57527.7062031853. The cubic root of 3309436981 is about 1490.2233770172.

The spelling of 3309436981 in words is "three billion, three hundred nine million, four hundred thirty-six thousand, nine hundred eighty-one".