32465821 has 2 divisors, whose sum is σ = 32465822. Its totient is φ = 32465820.

The previous prime is 32465779. The next prime is 32465827. The reversal of 32465821 is 12856423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21483225 + 10982596 = 4635^2 + 3314^2 .

It is an emirp because it is prime and its reverse (12856423) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32465821 - 2²³ = 24077213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32465827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16232910 + 16232911.

It is an arithmetic number, because the mean of its divisors is an integer number (16232911).

Almost surely, 2^32465821 is an apocalyptic number.

It is an amenable number.

32465821 is a deficient number, since it is larger than the sum of its proper divisors (1).

32465821 is an equidigital number, since it uses as much as digits as its factorization.

32465821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 31.

The square root of 32465821 is about 5697.8786403362. The cubic root of 32465821 is about 319.0133051319.

The spelling of 32465821 in words is "thirty-two million, four hundred sixty-five thousand, eight hundred twenty-one".