32664791 has 2 divisors, whose sum is σ = 32664792. Its totient is φ = 32664790.

The previous prime is 32664739. The next prime is 32664833. The reversal of 32664791 is 19746623.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32664791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32664721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16332395 + 16332396.

It is an arithmetic number, because the mean of its divisors is an integer number (16332396).

Almost surely, 2^32664791 is an apocalyptic number.

32664791 is a deficient number, since it is larger than the sum of its proper divisors (1).

32664791 is an equidigital number, since it uses as much as digits as its factorization.

32664791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 32664791 is about 5715.3119774864. The cubic root of 32664791 is about 319.6636798543.

The spelling of 32664791 in words is "thirty-two million, six hundred sixty-four thousand, seven hundred ninety-one".