320201887 has 8 divisors (see below), whose sum is σ = 324642816. Its totient is φ = 315787992.

The previous prime is 320201867. The next prime is 320201897. The reversal of 320201887 is 788102023.

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 320201887 - 2¹⁵ = 320169119 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 (320201807) 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, 17698 + ... + 30880.

It is an arithmetic number, because the mean of its divisors is an integer number (40580352).

Almost surely, 2^320201887 is an apocalyptic number.

320201887 is a deficient number, since it is larger than the sum of its proper divisors (4440929).

320201887 is a wasteful number, since it uses less digits than its factorization.

320201887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13517.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 320201887 is about 17894.1858434521. The cubic root of 320201887 is about 684.1341908955.

The spelling of 320201887 in words is "three hundred twenty million, two hundred one thousand, eight hundred eighty-seven".