34199621 has 2 divisors, whose sum is σ = 34199622. Its totient is φ = 34199620.

The previous prime is 34199611. The next prime is 34199647. The reversal of 34199621 is 12699143.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22372900 + 11826721 = 4730^2 + 3439^2 .

It is a cyclic number.

It is not a de Polignac number, because 34199621 - 2¹⁰ = 34198597 is a prime.

It is a super-2 number, since 2×34199621² = 2339228153087282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34199611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17099810 + 17099811.

It is an arithmetic number, because the mean of its divisors is an integer number (17099811).

Almost surely, 2^34199621 is an apocalyptic number.

It is an amenable number.

34199621 is a deficient number, since it is larger than the sum of its proper divisors (1).

34199621 is an equidigital number, since it uses as much as digits as its factorization.

34199621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 35.

The square root of 34199621 is about 5848.0442029793. The cubic root of 34199621 is about 324.5939576119.

The spelling of 34199621 in words is "thirty-four million, one hundred ninety-nine thousand, six hundred twenty-one".