329990047 has 2 divisors, whose sum is σ = 329990048. Its totient is φ = 329990046.

The previous prime is 329990029. The next prime is 329990093. The reversal of 329990047 is 740099923.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 329990047 - 2²³ = 321601439 is a prime.

It is a super-2 number, since 2×329990047² = 217786862238124418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 329989985 and 329990012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (329990027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164995023 + 164995024.

It is an arithmetic number, because the mean of its divisors is an integer number (164995024).

Almost surely, 2^329990047 is an apocalyptic number.

329990047 is a deficient number, since it is larger than the sum of its proper divisors (1).

329990047 is an equidigital number, since it uses as much as digits as its factorization.

329990047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 329990047 is about 18165.6281752105. The cubic root of 329990047 is about 691.0353755128.

The spelling of 329990047 in words is "three hundred twenty-nine million, nine hundred ninety thousand, forty-seven".