34520985 has 20 divisors (see below), whose sum is σ = 61882788. Its totient is φ = 18410976.

The previous prime is 34520977. The next prime is 34520987. The reversal of 34520985 is 58902543.

It can be written as a sum of positive squares in 2 ways, for example, as 18045504 + 16475481 = 4248^2 + 4059^2 .

It is not a de Polignac number, because 34520985 - 2³ = 34520977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34520987) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42214 + ... + 43023.

Almost surely, 2^34520985 is an apocalyptic number.

It is an amenable number.

34520985 is a deficient number, since it is larger than the sum of its proper divisors (27361803).

34520985 is an equidigital number, since it uses as much as digits as its factorization.

34520985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85254 (or 85245 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 34520985 is about 5875.4561525042. The cubic root of 34520985 is about 325.6074949175.

The spelling of 34520985 in words is "thirty-four million, five hundred twenty thousand, nine hundred eighty-five".