32890709 has 2 divisors, whose sum is σ = 32890710. Its totient is φ = 32890708.

The previous prime is 32890643. The next prime is 32890717. The reversal of 32890709 is 90709823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32890225 + 484 = 5735^2 + 22^2 .

It is an emirp because it is prime and its reverse (90709823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32890709 - 2⁸ = 32890453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32890799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16445354 + 16445355.

It is an arithmetic number, because the mean of its divisors is an integer number (16445355).

Almost surely, 2^32890709 is an apocalyptic number.

It is an amenable number.

32890709 is a deficient number, since it is larger than the sum of its proper divisors (1).

32890709 is an equidigital number, since it uses as much as digits as its factorization.

32890709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 32890709 is about 5735.0421968805. The cubic root of 32890709 is about 320.3989457847.

The spelling of 32890709 in words is "thirty-two million, eight hundred ninety thousand, seven hundred nine".