320883897 has 4 divisors (see below), whose sum is σ = 427845200. Its totient is φ = 213922596.

The previous prime is 320883887. The next prime is 320883907. The reversal of 320883897 is 798388023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (320883887) and next prime (320883907).

It is not a de Polignac number, because 320883897 - 2¹¹ = 320881849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320883817) 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, 53480647 + ... + 53480652.

It is an arithmetic number, because the mean of its divisors is an integer number (106961300).

Almost surely, 2^320883897 is an apocalyptic number.

It is an amenable number.

320883897 is a deficient number, since it is larger than the sum of its proper divisors (106961303).

320883897 is a wasteful number, since it uses less digits than its factorization.

320883897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106961302.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 320883897 is about 17913.2324553666. The cubic root of 320883897 is about 684.6195674692.

The spelling of 320883897 in words is "three hundred twenty million, eight hundred eighty-three thousand, eight hundred ninety-seven".