34689745 has 4 divisors (see below), whose sum is σ = 41627700. Its totient is φ = 27751792.

The previous prime is 34689737. The next prime is 34689749. The reversal of 34689745 is 54798643.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54798643 = 1847 ⋅29669.

It can be written as a sum of positive squares in 2 ways, for example, as 8105409 + 26584336 = 2847^2 + 5156^2 .

It is a cyclic number.

It is not a de Polignac number, because 34689745 - 2³ = 34689737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34689695 and 34689704.

It is not an unprimeable number, because it can be changed into a prime (34689749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3468970 + ... + 3468979.

It is an arithmetic number, because the mean of its divisors is an integer number (10406925).

Almost surely, 2^34689745 is an apocalyptic number.

It is an amenable number.

34689745 is a deficient number, since it is larger than the sum of its proper divisors (6937955).

34689745 is an equidigital number, since it uses as much as digits as its factorization.

34689745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6937954.

The product of its digits is 725760, while the sum is 46.

The square root of 34689745 is about 5889.8000814968. The cubic root of 34689745 is about 326.1372231469.

The spelling of 34689745 in words is "thirty-four million, six hundred eighty-nine thousand, seven hundred forty-five".