34020661 has 2 divisors, whose sum is σ = 34020662. Its totient is φ = 34020660.

The previous prime is 34020643. The next prime is 34020673. The reversal of 34020661 is 16602043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23097636 + 10923025 = 4806^2 + 3305^2 .

It is an emirp because it is prime and its reverse (16602043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34020661 - 2⁵ = 34020629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34020691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17010330 + 17010331.

It is an arithmetic number, because the mean of its divisors is an integer number (17010331).

Almost surely, 2^34020661 is an apocalyptic number.

It is an amenable number.

34020661 is a deficient number, since it is larger than the sum of its proper divisors (1).

34020661 is an equidigital number, since it uses as much as digits as its factorization.

34020661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 34020661 is about 5832.7232919109. The cubic root of 34020661 is about 324.0267880356.

The spelling of 34020661 in words is "thirty-four million, twenty thousand, six hundred sixty-one".