320198947 has 8 divisors (see below), whose sum is σ = 334175040. Its totient is φ = 306418560.

The previous prime is 320198933. The next prime is 320199007. The reversal of 320198947 is 749891023.

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 320198947 - 2²⁷ = 185981219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320190947) 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, 45579 + ... + 52132.

It is an arithmetic number, because the mean of its divisors is an integer number (41771880).

Almost surely, 2^320198947 is an apocalyptic number.

320198947 is a deficient number, since it is larger than the sum of its proper divisors (13976093).

320198947 is a wasteful number, since it uses less digits than its factorization.

320198947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97853.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 320198947 is about 17894.1036936752. The cubic root of 320198947 is about 684.1320970491.

The spelling of 320198947 in words is "three hundred twenty million, one hundred ninety-eight thousand, nine hundred forty-seven".