320969761 has 8 divisors (see below), whose sum is σ = 382771584. Its totient is φ = 263155200.

The previous prime is 320969729. The next prime is 320969777. The reversal of 320969761 is 167969023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320969761 - 2⁵ = 320969729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320969161) 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 7 ways as a sum of consecutive naturals, for example, 996640 + ... + 996961.

It is an arithmetic number, because the mean of its divisors is an integer number (47846448).

Almost surely, 2^320969761 is an apocalyptic number.

It is an amenable number.

320969761 is a deficient number, since it is larger than the sum of its proper divisors (61801823).

320969761 is a wasteful number, since it uses less digits than its factorization.

320969761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993631.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 320969761 is about 17915.6289590960. The cubic root of 320969761 is about 684.6806268664.

The spelling of 320969761 in words is "three hundred twenty million, nine hundred sixty-nine thousand, seven hundred sixty-one".