32809897 has 2 divisors, whose sum is σ = 32809898. Its totient is φ = 32809896.

The previous prime is 32809859. The next prime is 32809913. The reversal of 32809897 is 79890823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31933801 + 876096 = 5651^2 + 936^2 .

It is an emirp because it is prime and its reverse (79890823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32809897 - 2⁷ = 32809769 is a prime.

It is not a weakly prime, because it can be changed into another prime (32809837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16404948 + 16404949.

It is an arithmetic number, because the mean of its divisors is an integer number (16404949).

Almost surely, 2^32809897 is an apocalyptic number.

It is an amenable number.

32809897 is a deficient number, since it is larger than the sum of its proper divisors (1).

32809897 is an equidigital number, since it uses as much as digits as its factorization.

32809897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 32809897 is about 5727.9924057212. The cubic root of 32809897 is about 320.1363253784.

The spelling of 32809897 in words is "thirty-two million, eight hundred nine thousand, eight hundred ninety-seven".