349397794 has 4 divisors (see below), whose sum is σ = 524096694. Its totient is φ = 174698896.

The previous prime is 349397759. The next prime is 349397809. The reversal of 349397794 is 497793943.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 497793943 = 211 ⋅2359213.

It can be written as a sum of positive squares in only one way, i.e., 322741225 + 26656569 = 17965^2 + 5163^2 .

It is an unprimeable number.

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, 87349447 + ... + 87349450.

Almost surely, 2^349397794 is an apocalyptic number.

349397794 is a deficient number, since it is larger than the sum of its proper divisors (174698900).

349397794 is a wasteful number, since it uses less digits than its factorization.

349397794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174698899.

The product of its digits is 5143824, while the sum is 55.

The square root of 349397794 is about 18692.1853725026. The cubic root of 349397794 is about 704.3254577849.

The spelling of 349397794 in words is "three hundred forty-nine million, three hundred ninety-seven thousand, seven hundred ninety-four".