329428733 has 2 divisors, whose sum is σ = 329428734. Its totient is φ = 329428732.

The previous prime is 329428717. The next prime is 329428763. The reversal of 329428733 is 337824923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309830404 + 19598329 = 17602^2 + 4427^2 .

It is an emirp because it is prime and its reverse (337824923) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 329428733 - 2⁴ = 329428717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (329428763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164714366 + 164714367.

It is an arithmetic number, because the mean of its divisors is an integer number (164714367).

Almost surely, 2^329428733 is an apocalyptic number.

It is an amenable number.

329428733 is a deficient number, since it is larger than the sum of its proper divisors (1).

329428733 is an equidigital number, since it uses as much as digits as its factorization.

329428733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 41.

The square root of 329428733 is about 18150.1717071768. The cubic root of 329428733 is about 690.6433354345.

The spelling of 329428733 in words is "three hundred twenty-nine million, four hundred twenty-eight thousand, seven hundred thirty-three".