34553921 has 2 divisors, whose sum is σ = 34553922. Its totient is φ = 34553920.

The previous prime is 34553899. The next prime is 34553923. The reversal of 34553921 is 12935543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31798321 + 2755600 = 5639^2 + 1660^2 .

It is an emirp because it is prime and its reverse (12935543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34553921 - 2¹⁰ = 34552897 is a prime.

Together with 34553923, 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 (34553923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17276960 + 17276961.

It is an arithmetic number, because the mean of its divisors is an integer number (17276961).

Almost surely, 2^34553921 is an apocalyptic number.

It is an amenable number.

34553921 is a deficient number, since it is larger than the sum of its proper divisors (1).

34553921 is an equidigital number, since it uses as much as digits as its factorization.

34553921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 32.

The square root of 34553921 is about 5878.2583304921. The cubic root of 34553921 is about 325.7110145559.

The spelling of 34553921 in words is "thirty-four million, five hundred fifty-three thousand, nine hundred twenty-one".