34809961 has 2 divisors, whose sum is σ = 34809962. Its totient is φ = 34809960.

The previous prime is 34809949. The next prime is 34809979. The reversal of 34809961 is 16990843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29376400 + 5433561 = 5420^2 + 2331^2 .

It is an emirp because it is prime and its reverse (16990843) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34809961 - 2⁹ = 34809449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34809911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17404980 + 17404981.

It is an arithmetic number, because the mean of its divisors is an integer number (17404981).

Almost surely, 2^34809961 is an apocalyptic number.

It is an amenable number.

34809961 is a deficient number, since it is larger than the sum of its proper divisors (1).

34809961 is an equidigital number, since it uses as much as digits as its factorization.

34809961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 34809961 is about 5899.9966949143. The cubic root of 34809961 is about 326.5135275311.

The spelling of 34809961 in words is "thirty-four million, eight hundred nine thousand, nine hundred sixty-one".