320496853 has 2 divisors, whose sum is σ = 320496854. Its totient is φ = 320496852.

The previous prime is 320496851. The next prime is 320496919. The reversal of 320496853 is 358694023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316199524 + 4297329 = 17782^2 + 2073^2 .

It is an emirp because it is prime and its reverse (358694023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320496853 - 2¹ = 320496851 is a prime.

Together with 320496851, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320496851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160248426 + 160248427.

It is an arithmetic number, because the mean of its divisors is an integer number (160248427).

Almost surely, 2^320496853 is an apocalyptic number.

It is an amenable number.

320496853 is a deficient number, since it is larger than the sum of its proper divisors (1).

320496853 is an equidigital number, since it uses as much as digits as its factorization.

320496853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 320496853 is about 17902.4258970677. The cubic root of 320496853 is about 684.3441983955.

The spelling of 320496853 in words is "three hundred twenty million, four hundred ninety-six thousand, eight hundred fifty-three".