34475621 has 2 divisors, whose sum is σ = 34475622. Its totient is φ = 34475620.

The previous prime is 34475611. The next prime is 34475681. The reversal of 34475621 is 12657443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18395521 + 16080100 = 4289^2 + 4010^2 .

It is an emirp because it is prime and its reverse (12657443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34475621 - 2¹⁸ = 34213477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34475611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17237810 + 17237811.

It is an arithmetic number, because the mean of its divisors is an integer number (17237811).

Almost surely, 2^34475621 is an apocalyptic number.

It is an amenable number.

34475621 is a deficient number, since it is larger than the sum of its proper divisors (1).

34475621 is an equidigital number, since it uses as much as digits as its factorization.

34475621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 32.

The square root of 34475621 is about 5871.5944171920. The cubic root of 34475621 is about 325.4648055432.

The spelling of 34475621 in words is "thirty-four million, four hundred seventy-five thousand, six hundred twenty-one".