34020187 has 4 divisors (see below), whose sum is σ = 34038576. Its totient is φ = 34001800.

The previous prime is 34020169. The next prime is 34020193. The reversal of 34020187 is 78102043.

34020187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 34020187 - 2¹⁵ = 33987419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34020137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6064 + ... + 10237.

It is an arithmetic number, because the mean of its divisors is an integer number (8509644).

Almost surely, 2^34020187 is an apocalyptic number.

34020187 is a deficient number, since it is larger than the sum of its proper divisors (18389).

34020187 is a wasteful number, since it uses less digits than its factorization.

34020187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18388.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 34020187 is about 5832.6826589486. The cubic root of 34020187 is about 324.0252831715.

The spelling of 34020187 in words is "thirty-four million, twenty thousand, one hundred eighty-seven".