348431999 has 2 divisors, whose sum is σ = 348432000. Its totient is φ = 348431998.

The previous prime is 348431987. The next prime is 348432011. The reversal of 348431999 is 999134843.

It is a balanced prime because it is at equal distance from previous prime (348431987) and next prime (348432011).

It is a cyclic number.

It is not a de Polignac number, because 348431999 - 2²⁴ = 331654783 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348431299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174215999 + 174216000.

It is an arithmetic number, because the mean of its divisors is an integer number (174216000).

Almost surely, 2^348431999 is an apocalyptic number.

348431999 is a deficient number, since it is larger than the sum of its proper divisors (1).

348431999 is an equidigital number, since it uses as much as digits as its factorization.

348431999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 50.

The square root of 348431999 is about 18666.3333035709. Note that the first 4 decimals coincide. The cubic root of 348431999 is about 703.6759004205.

The spelling of 348431999 in words is "three hundred forty-eight million, four hundred thirty-one thousand, nine hundred ninety-nine".