34080821 has 2 divisors, whose sum is σ = 34080822. Its totient is φ = 34080820.

The previous prime is 34080793. The next prime is 34080847. The reversal of 34080821 is 12808043.

It is an a-pointer prime, because the next prime (34080847) can be obtained adding 34080821 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32364721 + 1716100 = 5689^2 + 1310^2 .

It is a cyclic number.

It is not a de Polignac number, because 34080821 - 2⁶ = 34080757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34086821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17040410 + 17040411.

It is an arithmetic number, because the mean of its divisors is an integer number (17040411).

Almost surely, 2^34080821 is an apocalyptic number.

It is an amenable number.

34080821 is a deficient number, since it is larger than the sum of its proper divisors (1).

34080821 is an equidigital number, since it uses as much as digits as its factorization.

34080821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 34080821 is about 5837.8781247984. The cubic root of 34080821 is about 324.2176717705.

Adding to 34080821 its reverse (12808043), we get a palindrome (46888864).

The spelling of 34080821 in words is "thirty-four million, eighty thousand, eight hundred twenty-one".