328879849 has 2 divisors, whose sum is σ = 328879850. Its totient is φ = 328879848.

The previous prime is 328879847. The next prime is 328879879. The reversal of 328879849 is 948978823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170119849 + 158760000 = 13043^2 + 12600^2 .

It is a cyclic number.

It is not a de Polignac number, because 328879849 - 2¹ = 328879847 is a prime.

Together with 328879847, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 328879793 and 328879802.

It is not a weakly prime, because it can be changed into another prime (328879847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164439924 + 164439925.

It is an arithmetic number, because the mean of its divisors is an integer number (164439925).

Almost surely, 2^328879849 is an apocalyptic number.

It is an amenable number.

328879849 is a deficient number, since it is larger than the sum of its proper divisors (1).

328879849 is an equidigital number, since it uses as much as digits as its factorization.

328879849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6967296, while the sum is 58.

The square root of 328879849 is about 18135.0447752411. The cubic root of 328879849 is about 690.2595459909.

The spelling of 328879849 in words is "three hundred twenty-eight million, eight hundred seventy-nine thousand, eight hundred forty-nine".