34047221 has 16 divisors (see below), whose sum is σ = 38808000. Its totient is φ = 29611008.

The previous prime is 34047197. The next prime is 34047227. The reversal of 34047221 is 12274043.

It is a cyclic number.

It is not a de Polignac number, because 34047221 - 2⁶ = 34047157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34047227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75605 + ... + 76053.

It is an arithmetic number, because the mean of its divisors is an integer number (2425500).

Almost surely, 2^34047221 is an apocalyptic number.

It is an amenable number.

34047221 is a deficient number, since it is larger than the sum of its proper divisors (4760779).

34047221 is a wasteful number, since it uses less digits than its factorization.

34047221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 34047221 is about 5834.9996572408. Note that the first 3 decimals coincide. The cubic root of 34047221 is about 324.1110888947. Note that the first 3 decimals are identical.

The spelling of 34047221 in words is "thirty-four million, forty-seven thousand, two hundred twenty-one".