3129323 has 2 divisors, whose sum is σ = 3129324. Its totient is φ = 3129322.

The previous prime is 3129289. The next prime is 3129383. The reversal of 3129323 is 3239213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3129323 is a prime.

It is a Sophie Germain prime.

It is equal to p₂₂₅₄₆₄ and since 3129323 and 225464 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (3129383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564661 + 1564662.

It is an arithmetic number, because the mean of its divisors is an integer number (1564662).

Almost surely, 2^3129323 is an apocalyptic number.

3129323 is a deficient number, since it is larger than the sum of its proper divisors (1).

3129323 is an equidigital number, since it uses as much as digits as its factorization.

3129323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 23.

The square root of 3129323 is about 1768.9892594360. The cubic root of 3129323 is about 146.2682720005.

The spelling of 3129323 in words is "three million, one hundred twenty-nine thousand, three hundred twenty-three".