34239661 has 2 divisors, whose sum is σ = 34239662. Its totient is φ = 34239660.

The previous prime is 34239637. The next prime is 34239697. The reversal of 34239661 is 16693243.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34222500 + 17161 = 5850^2 + 131^2 .

It is a cyclic number.

It is not a de Polignac number, because 34239661 - 2⁵ = 34239629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34239631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17119830 + 17119831.

It is an arithmetic number, because the mean of its divisors is an integer number (17119831).

Almost surely, 2^34239661 is an apocalyptic number.

It is an amenable number.

34239661 is a deficient number, since it is larger than the sum of its proper divisors (1).

34239661 is an equidigital number, since it uses as much as digits as its factorization.

34239661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 34.

The square root of 34239661 is about 5851.4665683058. The cubic root of 34239661 is about 324.7205835111.

The spelling of 34239661 in words is "thirty-four million, two hundred thirty-nine thousand, six hundred sixty-one".