32497681 has 2 divisors, whose sum is σ = 32497682. Its totient is φ = 32497680.

The previous prime is 32497669. The next prime is 32497697. The reversal of 32497681 is 18679423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25654225 + 6843456 = 5065^2 + 2616^2 .

It is a cyclic number.

It is not a de Polignac number, because 32497681 - 2²¹ = 30400529 is a prime.

It is a super-2 number, since 2×32497681² = 2112198540755522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32497601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16248840 + 16248841.

It is an arithmetic number, because the mean of its divisors is an integer number (16248841).

Almost surely, 2^32497681 is an apocalyptic number.

It is an amenable number.

32497681 is a deficient number, since it is larger than the sum of its proper divisors (1).

32497681 is an equidigital number, since it uses as much as digits as its factorization.

32497681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 32497681 is about 5700.6737321127. The cubic root of 32497681 is about 319.1176244920.

The spelling of 32497681 in words is "thirty-two million, four hundred ninety-seven thousand, six hundred eighty-one".