34173985 has 4 divisors (see below), whose sum is σ = 41008788. Its totient is φ = 27339184.

The previous prime is 34173983. The next prime is 34173991. The reversal of 34173985 is 58937143.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5089536 + 29084449 = 2256^2 + 5393^2 .

It is a cyclic number.

It is not a de Polignac number, because 34173985 - 2¹ = 34173983 is a prime.

It is a super-2 number, since 2×34173985² = 2335722501560450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34173983) 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, 3417394 + ... + 3417403.

It is an arithmetic number, because the mean of its divisors is an integer number (10252197).

Almost surely, 2^34173985 is an apocalyptic number.

It is an amenable number.

34173985 is a deficient number, since it is larger than the sum of its proper divisors (6834803).

34173985 is an equidigital number, since it uses as much as digits as its factorization.

34173985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6834802.

The product of its digits is 90720, while the sum is 40.

The square root of 34173985 is about 5845.8519481766. The cubic root of 34173985 is about 324.5128322414.

The spelling of 34173985 in words is "thirty-four million, one hundred seventy-three thousand, nine hundred eighty-five".