349675399 has 2 divisors, whose sum is σ = 349675400. Its totient is φ = 349675398.

The previous prime is 349675387. The next prime is 349675423. The reversal of 349675399 is 993576943.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 349675399 - 2¹⁹ = 349151111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349675349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174837699 + 174837700.

It is an arithmetic number, because the mean of its divisors is an integer number (174837700).

Almost surely, 2^349675399 is an apocalyptic number.

349675399 is a deficient number, since it is larger than the sum of its proper divisors (1).

349675399 is an equidigital number, since it uses as much as digits as its factorization.

349675399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5511240, while the sum is 55.

The square root of 349675399 is about 18699.6095948552. The cubic root of 349675399 is about 704.5119429431.

The spelling of 349675399 in words is "three hundred forty-nine million, six hundred seventy-five thousand, three hundred ninety-nine".