320958247 has 4 divisors (see below), whose sum is σ = 322927480. Its totient is φ = 318989016.

The previous prime is 320958233. The next prime is 320958263. The reversal of 320958247 is 742859023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320958247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320958217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984372 + ... + 984697.

It is an arithmetic number, because the mean of its divisors is an integer number (80731870).

Almost surely, 2^320958247 is an apocalyptic number.

320958247 is a deficient number, since it is larger than the sum of its proper divisors (1969233).

320958247 is a wasteful number, since it uses less digits than its factorization.

320958247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969232.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 320958247 is about 17915.3076166724. The cubic root of 320958247 is about 684.6724396912.

The spelling of 320958247 in words is "three hundred twenty million, nine hundred fifty-eight thousand, two hundred forty-seven".