34645861 has 4 divisors (see below), whose sum is σ = 35490924. Its totient is φ = 33800800.

The previous prime is 34645859. The next prime is 34645903. The reversal of 34645861 is 16854643.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16854643 = 13 ⋅1296511.

It can be written as a sum of positive squares in 2 ways, for example, as 11902500 + 22743361 = 3450^2 + 4769^2 .

It is a cyclic number.

It is not a de Polignac number, because 34645861 - 2¹ = 34645859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34645861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34645811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422470 + ... + 422551.

It is an arithmetic number, because the mean of its divisors is an integer number (8872731).

Almost surely, 2^34645861 is an apocalyptic number.

It is an amenable number.

34645861 is a deficient number, since it is larger than the sum of its proper divisors (845063).

34645861 is an equidigital number, since it uses as much as digits as its factorization.

34645861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845062.

The product of its digits is 69120, while the sum is 37.

The square root of 34645861 is about 5886.0734789841. The cubic root of 34645861 is about 325.9996393036. Note that the first 3 decimals are identical.

The spelling of 34645861 in words is "thirty-four million, six hundred forty-five thousand, eight hundred sixty-one".