349791493 has 2 divisors, whose sum is σ = 349791494. Its totient is φ = 349791492.

The previous prime is 349791487. The next prime is 349791499. The reversal of 349791493 is 394197943.

It is a balanced prime because it is at equal distance from previous prime (349791487) and next prime (349791499).

It can be written as a sum of positive squares in only one way, i.e., 316590849 + 33200644 = 17793^2 + 5762^2 .

It is a cyclic number.

It is not a de Polignac number, because 349791493 - 2⁵ = 349791461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349791499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174895746 + 174895747.

It is an arithmetic number, because the mean of its divisors is an integer number (174895747).

Almost surely, 2^349791493 is an apocalyptic number.

It is an amenable number.

349791493 is a deficient number, since it is larger than the sum of its proper divisors (1).

349791493 is an equidigital number, since it uses as much as digits as its factorization.

349791493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 49.

The square root of 349791493 is about 18702.7135197008. The cubic root of 349791493 is about 704.5899014916.

The spelling of 349791493 in words is "three hundred forty-nine million, seven hundred ninety-one thousand, four hundred ninety-three".