328449031 has 2 divisors, whose sum is σ = 328449032. Its totient is φ = 328449030.

The previous prime is 328449013. The next prime is 328449059. The reversal of 328449031 is 130944823.

Together with previous prime (328449013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (130944823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328449031 - 2²³ = 320060423 is a prime.

It is a super-2 number, since 2×328449031² = 215757531929677922, which contains 22 as substring.

It is equal to p_17706373 and since 328449031 and 17706373 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328449631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164224515 + 164224516.

It is an arithmetic number, because the mean of its divisors is an integer number (164224516).

Almost surely, 2^328449031 is an apocalyptic number.

328449031 is a deficient number, since it is larger than the sum of its proper divisors (1).

328449031 is an equidigital number, since it uses as much as digits as its factorization.

328449031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 328449031 is about 18123.1628310292. The cubic root of 328449031 is about 689.9580111675.

The spelling of 328449031 in words is "three hundred twenty-eight million, four hundred forty-nine thousand, thirty-one".