320954817 has 4 divisors (see below), whose sum is σ = 427939760. Its totient is φ = 213969876.

The previous prime is 320954807. The next prime is 320954827. The reversal of 320954817 is 718459023.

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 (320954807) and next prime (320954827).

It is not a de Polignac number, because 320954817 - 2¹⁹ = 320430529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320954807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53492467 + ... + 53492472.

It is an arithmetic number, because the mean of its divisors is an integer number (106984940).

Almost surely, 2^320954817 is an apocalyptic number.

It is an amenable number.

320954817 is a deficient number, since it is larger than the sum of its proper divisors (106984943).

320954817 is a wasteful number, since it uses less digits than its factorization.

320954817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106984942.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 320954817 is about 17915.2118882250. The cubic root of 320954817 is about 684.6700007085.

The spelling of 320954817 in words is "three hundred twenty million, nine hundred fifty-four thousand, eight hundred seventeen".