32788681 has 2 divisors, whose sum is σ = 32788682. Its totient is φ = 32788680.

The previous prime is 32788673. The next prime is 32788687. The reversal of 32788681 is 18688723.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20250000 + 12538681 = 4500^2 + 3541^2 .

It is a cyclic number.

It is not a de Polignac number, because 32788681 - 2³ = 32788673 is a prime.

It is a super-2 number, since 2×32788681² = 2150195203439522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (32788687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16394340 + 16394341.

It is an arithmetic number, because the mean of its divisors is an integer number (16394341).

Almost surely, 2^32788681 is an apocalyptic number.

It is an amenable number.

32788681 is a deficient number, since it is larger than the sum of its proper divisors (1).

32788681 is an equidigital number, since it uses as much as digits as its factorization.

32788681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 43.

The square root of 32788681 is about 5726.1401484770. The cubic root of 32788681 is about 320.0673068057.

The spelling of 32788681 in words is "thirty-two million, seven hundred eighty-eight thousand, six hundred eighty-one".