348783749 has 2 divisors, whose sum is σ = 348783750. Its totient is φ = 348783748.

The previous prime is 348783691. The next prime is 348783767. The reversal of 348783749 is 947387843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315062500 + 33721249 = 17750^2 + 5807^2 .

It is an emirp because it is prime and its reverse (947387843) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 348783749 - 2²⁴ = 332006533 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 348783749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348783049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174391874 + 174391875.

It is an arithmetic number, because the mean of its divisors is an integer number (174391875).

Almost surely, 2^348783749 is an apocalyptic number.

It is an amenable number.

348783749 is a deficient number, since it is larger than the sum of its proper divisors (1).

348783749 is an equidigital number, since it uses as much as digits as its factorization.

348783749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 53.

The square root of 348783749 is about 18675.7529700947. The cubic root of 348783749 is about 703.9126130394.

The spelling of 348783749 in words is "three hundred forty-eight million, seven hundred eighty-three thousand, seven hundred forty-nine".