32821091 has 2 divisors, whose sum is σ = 32821092. Its totient is φ = 32821090.

The previous prime is 32821057. The next prime is 32821121. The reversal of 32821091 is 19012823.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32821091 - 2⁶ = 32821027 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32821091.

It is not a weakly prime, because it can be changed into another prime (32821031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16410545 + 16410546.

It is an arithmetic number, because the mean of its divisors is an integer number (16410546).

Almost surely, 2^32821091 is an apocalyptic number.

32821091 is a deficient number, since it is larger than the sum of its proper divisors (1).

32821091 is an equidigital number, since it uses as much as digits as its factorization.

32821091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 32821091 is about 5728.9694535754. The cubic root of 32821091 is about 320.1727290135.

The spelling of 32821091 in words is "thirty-two million, eight hundred twenty-one thousand, ninety-one".