32506997 has 2 divisors, whose sum is σ = 32506998. Its totient is φ = 32506996.

The previous prime is 32506987. The next prime is 32507023. The reversal of 32506997 is 79960523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16434916 + 16072081 = 4054^2 + 4009^2 .

It is a cyclic number.

It is not a de Polignac number, because 32506997 - 2⁸ = 32506741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32506987) 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, 16253498 + 16253499.

It is an arithmetic number, because the mean of its divisors is an integer number (16253499).

Almost surely, 2^32506997 is an apocalyptic number.

It is an amenable number.

32506997 is a deficient number, since it is larger than the sum of its proper divisors (1).

32506997 is an equidigital number, since it uses as much as digits as its factorization.

32506997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 32506997 is about 5701.4907699653. The cubic root of 32506997 is about 319.1481150343.

The spelling of 32506997 in words is "thirty-two million, five hundred six thousand, nine hundred ninety-seven".