346255649 has 2 divisors, whose sum is σ = 346255650. Its totient is φ = 346255648.

The previous prime is 346255607. The next prime is 346255661. The reversal of 346255649 is 946552643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342990400 + 3265249 = 18520^2 + 1807^2 .

It is a cyclic number.

It is not a de Polignac number, because 346255649 - 2¹² = 346251553 is a prime.

It is a super-2 number, since 2×346255649² = 239785948928822402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (346255699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173127824 + 173127825.

It is an arithmetic number, because the mean of its divisors is an integer number (173127825).

Almost surely, 2^346255649 is an apocalyptic number.

It is an amenable number.

346255649 is a deficient number, since it is larger than the sum of its proper divisors (1).

346255649 is an equidigital number, since it uses as much as digits as its factorization.

346255649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 44.

The square root of 346255649 is about 18607.9458565420. The cubic root of 346255649 is about 702.2077567620.

The spelling of 346255649 in words is "three hundred forty-six million, two hundred fifty-five thousand, six hundred forty-nine".