349211879 has 2 divisors, whose sum is σ = 349211880. Its totient is φ = 349211878.

The previous prime is 349211861. The next prime is 349211897. The reversal of 349211879 is 978112943.

Together with next prime (349211897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (349211861) and next prime (349211897).

It is an emirp because it is prime and its reverse (978112943) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349211879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349211899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174605939 + 174605940.

It is an arithmetic number, because the mean of its divisors is an integer number (174605940).

Almost surely, 2^349211879 is an apocalyptic number.

349211879 is a deficient number, since it is larger than the sum of its proper divisors (1).

349211879 is an equidigital number, since it uses as much as digits as its factorization.

349211879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 349211879 is about 18687.2116432602. The cubic root of 349211879 is about 704.2005114708.

The spelling of 349211879 in words is "three hundred forty-nine million, two hundred eleven thousand, eight hundred seventy-nine".