328613669 has 2 divisors, whose sum is σ = 328613670. Its totient is φ = 328613668.

The previous prime is 328613651. The next prime is 328613699. The reversal of 328613669 is 966316823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328080769 + 532900 = 18113^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 328613669 - 2²⁸ = 60178213 is a prime.

It is a super-2 number, since 2×328613669² = 215973886907283122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328613629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164306834 + 164306835.

It is an arithmetic number, because the mean of its divisors is an integer number (164306835).

Almost surely, 2^328613669 is an apocalyptic number.

It is an amenable number.

328613669 is a deficient number, since it is larger than the sum of its proper divisors (1).

328613669 is an equidigital number, since it uses as much as digits as its factorization.

328613669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 44.

The square root of 328613669 is about 18127.7044603005. The cubic root of 328613669 is about 690.0732744420.

The spelling of 328613669 in words is "three hundred twenty-eight million, six hundred thirteen thousand, six hundred sixty-nine".