34109921 has 8 divisors (see below), whose sum is σ = 36670080. Its totient is φ = 31626288.

The previous prime is 34109903. The next prime is 34109923. The reversal of 34109921 is 12990143.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34109921 - 2¹⁴ = 34093537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34109923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18206 + ... + 19991.

It is an arithmetic number, because the mean of its divisors is an integer number (4583760).

Almost surely, 2^34109921 is an apocalyptic number.

It is an amenable number.

34109921 is a deficient number, since it is larger than the sum of its proper divisors (2560159).

34109921 is a wasteful number, since it uses less digits than its factorization.

34109921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38263.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 34109921 is about 5840.3699369132. The cubic root of 34109921 is about 324.3099235606.

It can be divided in two parts, 3410 and 9921, that added together give a palindrome (13331).

The spelling of 34109921 in words is "thirty-four million, one hundred nine thousand, nine hundred twenty-one".