34709861 has 2 divisors, whose sum is σ = 34709862. Its totient is φ = 34709860.

The previous prime is 34709813. The next prime is 34709881. The reversal of 34709861 is 16890743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17850625 + 16859236 = 4225^2 + 4106^2 .

It is a cyclic number.

It is not a de Polignac number, because 34709861 - 2⁶ = 34709797 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34709881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17354930 + 17354931.

It is an arithmetic number, because the mean of its divisors is an integer number (17354931).

Almost surely, 2^34709861 is an apocalyptic number.

It is an amenable number.

34709861 is a deficient number, since it is larger than the sum of its proper divisors (1).

34709861 is an equidigital number, since it uses as much as digits as its factorization.

34709861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 34709861 is about 5891.5075320329. The cubic root of 34709861 is about 326.2002514633.

It can be divided in two parts, 3470 and 9861, that added together give a palindrome (13331).

The spelling of 34709861 in words is "thirty-four million, seven hundred nine thousand, eight hundred sixty-one".