320005677 has 4 divisors (see below), whose sum is σ = 426674240. Its totient is φ = 213337116.

The previous prime is 320005597. The next prime is 320005681. The reversal of 320005677 is 776500023.

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 not a de Polignac number, because 320005677 - 2¹⁵ = 319972909 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 (320000677) 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, 53334277 + ... + 53334282.

It is an arithmetic number, because the mean of its divisors is an integer number (106668560).

Almost surely, 2^320005677 is an apocalyptic number.

It is an amenable number.

320005677 is a deficient number, since it is larger than the sum of its proper divisors (106668563).

320005677 is a wasteful number, since it uses less digits than its factorization.

320005677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106668562.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 320005677 is about 17888.7024962684. The cubic root of 320005677 is about 683.9944234524.

The spelling of 320005677 in words is "three hundred twenty million, five thousand, six hundred seventy-seven".