34004721 has 8 divisors (see below), whose sum is σ = 45415584. Its totient is φ = 22631840.

The previous prime is 34004717. The next prime is 34004723. The reversal of 34004721 is 12740043.

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 34004721 - 2² = 34004717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34004723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7335 + ... + 11036.

It is an arithmetic number, because the mean of its divisors is an integer number (5676948).

Almost surely, 2^34004721 is an apocalyptic number.

It is an amenable number.

34004721 is a deficient number, since it is larger than the sum of its proper divisors (11410863).

34004721 is a wasteful number, since it uses less digits than its factorization.

34004721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18991.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 34004721 is about 5831.3567032038. The cubic root of 34004721 is about 323.9761737547.

Adding to 34004721 its reverse (12740043), we get a palindrome (46744764).

The spelling of 34004721 in words is "thirty-four million, four thousand, seven hundred twenty-one".