32740009 has 2 divisors, whose sum is σ = 32740010. Its totient is φ = 32740008.

The previous prime is 32740007. The next prime is 32740031. The reversal of 32740009 is 90004723.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32718400 + 21609 = 5720^2 + 147^2 .

It is an emirp because it is prime and its reverse (90004723) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32740009 - 2¹ = 32740007 is a prime.

Together with 32740007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (32740007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16370004 + 16370005.

It is an arithmetic number, because the mean of its divisors is an integer number (16370005).

Almost surely, 2^32740009 is an apocalyptic number.

It is an amenable number.

32740009 is a deficient number, since it is larger than the sum of its proper divisors (1).

32740009 is an equidigital number, since it uses as much as digits as its factorization.

32740009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 32740009 is about 5721.8885868217. Note that the first 3 decimals coincide. The cubic root of 32740009 is about 319.9088575068.

The spelling of 32740009 in words is "thirty-two million, seven hundred forty thousand, nine".