34882721 has 2 divisors, whose sum is σ = 34882722. Its totient is φ = 34882720.

The previous prime is 34882717. The next prime is 34882723. The reversal of 34882721 is 12728843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29757025 + 5125696 = 5455^2 + 2264^2 .

It is a cyclic number.

It is not a de Polignac number, because 34882721 - 2² = 34882717 is a prime.

Together with 34882723, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34882723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17441360 + 17441361.

It is an arithmetic number, because the mean of its divisors is an integer number (17441361).

Almost surely, 2^34882721 is an apocalyptic number.

It is an amenable number.

34882721 is a deficient number, since it is larger than the sum of its proper divisors (1).

34882721 is an equidigital number, since it uses as much as digits as its factorization.

34882721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 35.

The square root of 34882721 is about 5906.1595813185. The cubic root of 34882721 is about 326.7408627568.

The spelling of 34882721 in words is "thirty-four million, eight hundred eighty-two thousand, seven hundred twenty-one".