34785225 has 36 divisors (see below), whose sum is σ = 63501516. Its totient is φ = 18195840.

The previous prime is 34785221. The next prime is 34785227. The reversal of 34785225 is 52258743.

It can be written as a sum of positive squares in 6 ways, for example, as 4016016 + 30769209 = 2004^2 + 5547^2 .

It is not a de Polignac number, because 34785225 - 2² = 34785221 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 34785225.

It is not an unprimeable number, because it can be changed into a prime (34785221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10467 + ... + 13383.

It is an arithmetic number, because the mean of its divisors is an integer number (1763931).

Almost surely, 2^34785225 is an apocalyptic number.

It is an amenable number.

34785225 is a deficient number, since it is larger than the sum of its proper divisors (28716291).

34785225 is a wasteful number, since it uses less digits than its factorization.

34785225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986 (or 2978 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 34785225 is about 5897.9000500178. The cubic root of 34785225 is about 326.4361689032.

The spelling of 34785225 in words is "thirty-four million, seven hundred eighty-five thousand, two hundred twenty-five".