327986965 has 4 divisors (see below), whose sum is σ = 393584364. Its totient is φ = 262389568.

The previous prime is 327986957. The next prime is 327986999. The reversal of 327986965 is 569689723.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 569689723 = 6203 ⋅91841.

It can be written as a sum of positive squares in 2 ways, for example, as 196953156 + 131033809 = 14034^2 + 11447^2 .

It is a cyclic number.

It is not a de Polignac number, because 327986965 - 2³ = 327986957 is a prime.

It is a super-2 number, since 2×327986965² = 215150898419822450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32798692 + ... + 32798701.

It is an arithmetic number, because the mean of its divisors is an integer number (98396091).

Almost surely, 2^327986965 is an apocalyptic number.

It is an amenable number.

327986965 is a deficient number, since it is larger than the sum of its proper divisors (65597399).

327986965 is an equidigital number, since it uses as much as digits as its factorization.

327986965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65597398.

The product of its digits is 4898880, while the sum is 55.

The square root of 327986965 is about 18110.4104039638. The cubic root of 327986965 is about 689.6343122824.

The spelling of 327986965 in words is "three hundred twenty-seven million, nine hundred eighty-six thousand, nine hundred sixty-five".