34000621 has 2 divisors, whose sum is σ = 34000622. Its totient is φ = 34000620.

The previous prime is 34000597. The next prime is 34000639. The reversal of 34000621 is 12600043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33802596 + 198025 = 5814^2 + 445^2 .

It is a cyclic number.

It is not a de Polignac number, because 34000621 - 2¹³ = 33992429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34000595 and 34000604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34000661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17000310 + 17000311.

It is an arithmetic number, because the mean of its divisors is an integer number (17000311).

Almost surely, 2^34000621 is an apocalyptic number.

It is an amenable number.

34000621 is a deficient number, since it is larger than the sum of its proper divisors (1).

34000621 is an equidigital number, since it uses as much as digits as its factorization.

34000621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 34000621 is about 5831.0051449128. The cubic root of 34000621 is about 323.9631524676.

Adding to 34000621 its reverse (12600043), we get a palindrome (46600664).

The spelling of 34000621 in words is "thirty-four million, six hundred twenty-one", and thus it is an aban number.