32571997 has 2 divisors, whose sum is σ = 32571998. Its totient is φ = 32571996.

The previous prime is 32571989. The next prime is 32572013. The reversal of 32571997 is 79917523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31292836 + 1279161 = 5594^2 + 1131^2 .

It is a cyclic number.

It is not a de Polignac number, because 32571997 - 2³ = 32571989 is a prime.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32571907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16285998 + 16285999.

It is an arithmetic number, because the mean of its divisors is an integer number (16285999).

Almost surely, 2^32571997 is an apocalyptic number.

It is an amenable number.

32571997 is a deficient number, since it is larger than the sum of its proper divisors (1).

32571997 is an equidigital number, since it uses as much as digits as its factorization.

32571997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119070, while the sum is 43.

The square root of 32571997 is about 5707.1881868395. The cubic root of 32571997 is about 319.3606930222.

The spelling of 32571997 in words is "thirty-two million, five hundred seventy-one thousand, nine hundred ninety-seven".