349407013 has 2 divisors, whose sum is σ = 349407014. Its totient is φ = 349407012.

The previous prime is 349406989. The next prime is 349407031. The reversal of 349407013 is 310704943.

Together with next prime (349407031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316021729 + 33385284 = 17777^2 + 5778^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349407013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349407313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174703506 + 174703507.

It is an arithmetic number, because the mean of its divisors is an integer number (174703507).

Almost surely, 2^349407013 is an apocalyptic number.

It is an amenable number.

349407013 is a deficient number, since it is larger than the sum of its proper divisors (1).

349407013 is an equidigital number, since it uses as much as digits as its factorization.

349407013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 349407013 is about 18692.4319712551. The cubic root of 349407013 is about 704.3316523664.

The spelling of 349407013 in words is "three hundred forty-nine million, four hundred seven thousand, thirteen".