330780913 has 2 divisors, whose sum is σ = 330780914. Its totient is φ = 330780912.

The previous prime is 330780911. The next prime is 330780973. The reversal of 330780913 is 319087033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208744704 + 122036209 = 14448^2 + 11047^2 .

It is an emirp because it is prime and its reverse (319087033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 330780913 - 2¹ = 330780911 is a prime.

It is a super-2 number, since 2×330780913² = 218832024810227138, which contains 22 as substring.

Together with 330780911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (330780911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165390456 + 165390457.

It is an arithmetic number, because the mean of its divisors is an integer number (165390457).

Almost surely, 2^330780913 is an apocalyptic number.

It is an amenable number.

330780913 is a deficient number, since it is larger than the sum of its proper divisors (1).

330780913 is an equidigital number, since it uses as much as digits as its factorization.

330780913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 330780913 is about 18187.3833467049. The cubic root of 330780913 is about 691.5869884765.

The spelling of 330780913 in words is "three hundred thirty million, seven hundred eighty thousand, nine hundred thirteen".