108472321 has 2 divisors, whose sum is σ = 108472322. Its totient is φ = 108472320.

The previous prime is 108472319. The next prime is 108472333. The reversal of 108472321 is 123274801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67831696 + 40640625 = 8236^2 + 6375^2 .

It is a cyclic number.

It is not a de Polignac number, because 108472321 - 2¹ = 108472319 is a prime.

Together with 108472319, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 108472321.

It is not a weakly prime, because it can be changed into another prime (108472361) 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 as a sum of consecutive naturals, namely, 54236160 + 54236161.

It is an arithmetic number, because the mean of its divisors is an integer number (54236161).

Almost surely, 2^108472321 is an apocalyptic number.

It is an amenable number.

108472321 is a deficient number, since it is larger than the sum of its proper divisors (1).

108472321 is an equidigital number, since it uses as much as digits as its factorization.

108472321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 108472321 is about 10415.0046087364. The cubic root of 108472321 is about 476.9135308777.

The spelling of 108472321 in words is "one hundred eight million, four hundred seventy-two thousand, three hundred twenty-one".