32637641 has 2 divisors, whose sum is σ = 32637642. Its totient is φ = 32637640.

The previous prime is 32637629. The next prime is 32637659. The reversal of 32637641 is 14673623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16605625 + 16032016 = 4075^2 + 4004^2 .

It is a cyclic number.

It is not a de Polignac number, because 32637641 - 2¹⁴ = 32621257 is a prime.

It is a super-2 number, since 2×32637641² = 2130431220089762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 32637598 and 32637607.

It is not a weakly prime, because it can be changed into another prime (32630641) 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, 16318820 + 16318821.

It is an arithmetic number, because the mean of its divisors is an integer number (16318821).

Almost surely, 2^32637641 is an apocalyptic number.

It is an amenable number.

32637641 is a deficient number, since it is larger than the sum of its proper divisors (1).

32637641 is an equidigital number, since it uses as much as digits as its factorization.

32637641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 32.

The square root of 32637641 is about 5712.9362853090. The cubic root of 32637641 is about 319.5750903334.

The spelling of 32637641 in words is "thirty-two million, six hundred thirty-seven thousand, six hundred forty-one".