34943561 has 2 divisors, whose sum is σ = 34943562. Its totient is φ = 34943560.

The previous prime is 34943549. The next prime is 34943569. The reversal of 34943561 is 16534943.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29767936 + 5175625 = 5456^2 + 2275^2 .

It is a cyclic number.

It is not a de Polignac number, because 34943561 - 2¹⁴ = 34927177 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (34943569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17471780 + 17471781.

It is an arithmetic number, because the mean of its divisors is an integer number (17471781).

Almost surely, 2^34943561 is an apocalyptic number.

It is an amenable number.

34943561 is a deficient number, since it is larger than the sum of its proper divisors (1).

34943561 is an equidigital number, since it uses as much as digits as its factorization.

34943561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 35.

The square root of 34943561 is about 5911.3078925057. The cubic root of 34943561 is about 326.9307119388.

The spelling of 34943561 in words is "thirty-four million, nine hundred forty-three thousand, five hundred sixty-one".