320776996 has 12 divisors (see below), whose sum is σ = 563598000. Its totient is φ = 159749000.

The previous prime is 320776993. The next prime is 320776999. The reversal of 320776996 is 699677023.

It is an interprime number because it is at equal distance from previous prime (320776993) and next prime (320776999).

It is not an unprimeable number, because it can be changed into a prime (320776993) 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, 158746 + ... + 160753.

It is an arithmetic number, because the mean of its divisors is an integer number (46966500).

Almost surely, 2^320776996 is an apocalyptic number.

It is an amenable number.

320776996 is a deficient number, since it is larger than the sum of its proper divisors (242821004).

320776996 is a wasteful number, since it uses less digits than its factorization.

320776996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319754 (or 319752 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 49.

The square root of 320776996 is about 17910.2483511536. The cubic root of 320776996 is about 684.5435330677.

The spelling of 320776996 in words is "three hundred twenty million, seven hundred seventy-six thousand, nine hundred ninety-six".