331980017 has 2 divisors, whose sum is σ = 331980018. Its totient is φ = 331980016.

The previous prime is 331980001. The next prime is 331980049. The reversal of 331980017 is 710089133.

It is an a-pointer prime, because the next prime (331980049) can be obtained adding 331980017 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328479376 + 3500641 = 18124^2 + 1871^2 .

It is a cyclic number.

It is not a de Polignac number, because 331980017 - 2⁴ = 331980001 is a prime.

It is a super-2 number, since 2×331980017² = 220421463374640578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (331989017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165990008 + 165990009.

It is an arithmetic number, because the mean of its divisors is an integer number (165990009).

Almost surely, 2^331980017 is an apocalyptic number.

It is an amenable number.

331980017 is a deficient number, since it is larger than the sum of its proper divisors (1).

331980017 is an equidigital number, since it uses as much as digits as its factorization.

331980017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 331980017 is about 18220.3187952352. The cubic root of 331980017 is about 692.4216644742.

The spelling of 331980017 in words is "three hundred thirty-one million, nine hundred eighty thousand, seventeen".