34099421 has 4 divisors (see below), whose sum is σ = 34278144. Its totient is φ = 33920700.

The previous prime is 34099391. The next prime is 34099423. The reversal of 34099421 is 12499043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34099421 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 (34099423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89075 + ... + 89456.

It is an arithmetic number, because the mean of its divisors is an integer number (8569536).

Almost surely, 2^34099421 is an apocalyptic number.

It is an amenable number.

34099421 is a deficient number, since it is larger than the sum of its proper divisors (178723).

34099421 is a wasteful number, since it uses less digits than its factorization.

34099421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178722.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 34099421 is about 5839.4709520641. The cubic root of 34099421 is about 324.2766428848.

The spelling of 34099421 in words is "thirty-four million, ninety-nine thousand, four hundred twenty-one".