349758641 has 2 divisors, whose sum is σ = 349758642. Its totient is φ = 349758640.

The previous prime is 349758601. The next prime is 349758679. The reversal of 349758641 is 146857943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222159025 + 127599616 = 14905^2 + 11296^2 .

It is a cyclic number.

It is not a de Polignac number, because 349758641 - 2¹⁴ = 349742257 is a prime.

It is a super-2 number, since 2×349758641² = 244662213908333762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (349758601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174879320 + 174879321.

It is an arithmetic number, because the mean of its divisors is an integer number (174879321).

Almost surely, 2^349758641 is an apocalyptic number.

It is an amenable number.

349758641 is a deficient number, since it is larger than the sum of its proper divisors (1).

349758641 is an equidigital number, since it uses as much as digits as its factorization.

349758641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The square root of 349758641 is about 18701.8352308002. The cubic root of 349758641 is about 704.5678427198.

The spelling of 349758641 in words is "three hundred forty-nine million, seven hundred fifty-eight thousand, six hundred forty-one".