34219991 has 16 divisors (see below), whose sum is σ = 37818144. Its totient is φ = 30772224.

The previous prime is 34219981. The next prime is 34220003. The reversal of 34219991 is 19991243.

34219991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 34219991 - 2¹⁰ = 34218967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34219961) 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 15 ways as a sum of consecutive naturals, for example, 101375 + ... + 101711.

It is an arithmetic number, because the mean of its divisors is an integer number (2363634).

Almost surely, 2^34219991 is an apocalyptic number.

34219991 is a deficient number, since it is larger than the sum of its proper divisors (3598153).

34219991 is a wasteful number, since it uses less digits than its factorization.

34219991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530.

The product of its digits is 17496, while the sum is 38.

The square root of 34219991 is about 5849.7855516249. The cubic root of 34219991 is about 324.6583897744.

The spelling of 34219991 in words is "thirty-four million, two hundred nineteen thousand, nine hundred ninety-one".