349079897 has 2 divisors, whose sum is σ = 349079898. Its totient is φ = 349079896.

The previous prime is 349079851. The next prime is 349079909. The reversal of 349079897 is 798970943.

349079897 is nontrivially palindromic in base 6.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 340808521 + 8271376 = 18461^2 + 2876^2 .

It is an emirp because it is prime and its reverse (798970943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349079897 - 2⁶ = 349079833 is a prime.

It is not a weakly prime, because it can be changed into another prime (349079827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174539948 + 174539949.

It is an arithmetic number, because the mean of its divisors is an integer number (174539949).

Almost surely, 2^349079897 is an apocalyptic number.

It is an amenable number.

349079897 is a deficient number, since it is larger than the sum of its proper divisors (1).

349079897 is an equidigital number, since it uses as much as digits as its factorization.

349079897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 349079897 is about 18683.6799640756. The cubic root of 349079897 is about 704.1117845318. Note that the first 3 decimals are identical.

The spelling of 349079897 in words is "three hundred forty-nine million, seventy-nine thousand, eight hundred ninety-seven".