34066721 has 8 divisors (see below), whose sum is σ = 36732864. Its totient is φ = 31407120.

The previous prime is 34066717. The next prime is 34066729. The reversal of 34066721 is 12766043.

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 34066721 - 2² = 34066717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34066729) 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, 17906 + ... + 19716.

It is an arithmetic number, because the mean of its divisors is an integer number (4591608).

Almost surely, 2^34066721 is an apocalyptic number.

It is an amenable number.

34066721 is a deficient number, since it is larger than the sum of its proper divisors (2666143).

34066721 is a wasteful number, since it uses less digits than its factorization.

34066721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 34066721 is about 5836.6703693116. The cubic root of 34066721 is about 324.1729535623.

The spelling of 34066721 in words is "thirty-four million, sixty-six thousand, seven hundred twenty-one".