329690377 has 2 divisors, whose sum is σ = 329690378. Its totient is φ = 329690376.

The previous prime is 329690353. The next prime is 329690393. The reversal of 329690377 is 773096923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244109376 + 85581001 = 15624^2 + 9251^2 .

It is a cyclic number.

It is not a de Polignac number, because 329690377 - 2²⁷ = 195472649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (329691377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164845188 + 164845189.

It is an arithmetic number, because the mean of its divisors is an integer number (164845189).

Almost surely, 2^329690377 is an apocalyptic number.

It is an amenable number.

329690377 is a deficient number, since it is larger than the sum of its proper divisors (1).

329690377 is an equidigital number, since it uses as much as digits as its factorization.

329690377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 46.

The square root of 329690377 is about 18157.3780320838. The cubic root of 329690377 is about 690.8261315375.

The spelling of 329690377 in words is "three hundred twenty-nine million, six hundred ninety thousand, three hundred seventy-seven".