34212861 has 20 divisors (see below), whose sum is σ = 51981600. Its totient is φ = 22418856.

The previous prime is 34212853. The next prime is 34212889. The reversal of 34212861 is 16821243.

34212861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 34212861 - 2³ = 34212853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34212361) 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 19 ways as a sum of consecutive naturals, for example, 1200 + ... + 8358.

It is an arithmetic number, because the mean of its divisors is an integer number (2599080).

Almost surely, 2^34212861 is an apocalyptic number.

It is an amenable number.

34212861 is a deficient number, since it is larger than the sum of its proper divisors (17768739).

34212861 is an equidigital number, since it uses as much as digits as its factorization.

34212861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7230 (or 7221 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 34212861 is about 5849.1760958275. The cubic root of 34212861 is about 324.6358398453.

It can be divided in two parts, 342 and 12861, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 34212861 in words is "thirty-four million, two hundred twelve thousand, eight hundred sixty-one".