329918749 has 2 divisors, whose sum is σ = 329918750. Its totient is φ = 329918748.

The previous prime is 329918741. The next prime is 329918767. The reversal of 329918749 is 947819923.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202635225 + 127283524 = 14235^2 + 11282^2 .

It is a cyclic number.

It is not a de Polignac number, because 329918749 - 2³ = 329918741 is a prime.

It is a super-4 number, since 4×329918749⁴ (a number of 35 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 329918696 and 329918705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (329918741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164959374 + 164959375.

It is an arithmetic number, because the mean of its divisors is an integer number (164959375).

Almost surely, 2^329918749 is an apocalyptic number.

It is an amenable number.

329918749 is a deficient number, since it is larger than the sum of its proper divisors (1).

329918749 is an equidigital number, since it uses as much as digits as its factorization.

329918749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 52.

The square root of 329918749 is about 18163.6656267396. The cubic root of 329918749 is about 690.9856033157.

The spelling of 329918749 in words is "three hundred twenty-nine million, nine hundred eighteen thousand, seven hundred forty-nine".