320645027 has 8 divisors (see below), whose sum is σ = 324599040. Its totient is φ = 316715400.

The previous prime is 320645021. The next prime is 320645033. The reversal of 320645027 is 720546023.

It is an interprime number because it is at equal distance from previous prime (320645021) and next prime (320645033).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320645027 - 2²⁶ = 253536163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320645021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21098 + ... + 32960.

It is an arithmetic number, because the mean of its divisors is an integer number (40574880).

Almost surely, 2^320645027 is an apocalyptic number.

320645027 is a deficient number, since it is larger than the sum of its proper divisors (3954013).

320645027 is a wasteful number, since it uses less digits than its factorization.

320645027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12193.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 320645027 is about 17906.5637965524. The cubic root of 320645027 is about 684.4496454988.

The spelling of 320645027 in words is "three hundred twenty million, six hundred forty-five thousand, twenty-seven".