34554721 has 4 divisors (see below), whose sum is σ = 34566832. Its totient is φ = 34542612.

The previous prime is 34554719. The next prime is 34554733. The reversal of 34554721 is 12745543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12745543 = 367 ⋅34729.

It is a cyclic number.

It is not a de Polignac number, because 34554721 - 2¹ = 34554719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34554791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850 + ... + 8356.

It is an arithmetic number, because the mean of its divisors is an integer number (8641708).

Almost surely, 2^34554721 is an apocalyptic number.

It is an amenable number.

34554721 is a deficient number, since it is larger than the sum of its proper divisors (12111).

34554721 is an equidigital number, since it uses as much as digits as its factorization.

34554721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12110.

The product of its digits is 16800, while the sum is 31.

The square root of 34554721 is about 5878.3263774649. The cubic root of 34554721 is about 325.7135281809.

The spelling of 34554721 in words is "thirty-four million, five hundred fifty-four thousand, seven hundred twenty-one".