328756427 has 2 divisors, whose sum is σ = 328756428. Its totient is φ = 328756426.

The previous prime is 328756423. The next prime is 328756429. The reversal of 328756427 is 724657823.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 328756427 - 2² = 328756423 is a prime.

Together with 328756429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (328756423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164378213 + 164378214.

It is an arithmetic number, because the mean of its divisors is an integer number (164378214).

Almost surely, 2^328756427 is an apocalyptic number.

328756427 is a deficient number, since it is larger than the sum of its proper divisors (1).

328756427 is an equidigital number, since it uses as much as digits as its factorization.

328756427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 44.

The square root of 328756427 is about 18131.6415969432. The cubic root of 328756427 is about 690.1731883406.

The spelling of 328756427 in words is "three hundred twenty-eight million, seven hundred fifty-six thousand, four hundred twenty-seven".