349086473 has 2 divisors, whose sum is σ = 349086474. Its totient is φ = 349086472.

The previous prime is 349086457. The next prime is 349086503. The reversal of 349086473 is 374680943.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185041609 + 164044864 = 13603^2 + 12808^2 .

It is a cyclic number.

It is not a de Polignac number, because 349086473 - 2⁴ = 349086457 is a prime.

It is a super-2 number, since 2×349086473² = 243722731263159458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (349086173) 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, 174543236 + 174543237.

It is an arithmetic number, because the mean of its divisors is an integer number (174543237).

Almost surely, 2^349086473 is an apocalyptic number.

It is an amenable number.

349086473 is a deficient number, since it is larger than the sum of its proper divisors (1).

349086473 is an equidigital number, since it uses as much as digits as its factorization.

349086473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 349086473 is about 18683.8559457089. The cubic root of 349086473 is about 704.1162058787.

The spelling of 349086473 in words is "three hundred forty-nine million, eighty-six thousand, four hundred seventy-three".