348895909 has 2 divisors, whose sum is σ = 348895910. Its totient is φ = 348895908.

The previous prime is 348895889. The next prime is 348895933. The reversal of 348895909 is 909598843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346778884 + 2117025 = 18622^2 + 1455^2 .

It is a cyclic number.

It is not a de Polignac number, because 348895909 - 2¹³ = 348887717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 348895909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348895009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174447954 + 174447955.

It is an arithmetic number, because the mean of its divisors is an integer number (174447955).

Almost surely, 2^348895909 is an apocalyptic number.

It is an amenable number.

348895909 is a deficient number, since it is larger than the sum of its proper divisors (1).

348895909 is an equidigital number, since it uses as much as digits as its factorization.

348895909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 348895909 is about 18678.7555527664. The cubic root of 348895909 is about 703.9880584289.

The spelling of 348895909 in words is "three hundred forty-eight million, eight hundred ninety-five thousand, nine hundred nine".