327760661 has 4 divisors (see below), whose sum is σ = 327810252. Its totient is φ = 327711072.

The previous prime is 327760633. The next prime is 327760669. The reversal of 327760661 is 166067723.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 169780900 + 157979761 = 13030^2 + 12569^2 .

It is a cyclic number.

It is not a de Polignac number, because 327760661 - 2⁶ = 327760597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327760669) 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, 13016 + ... + 28721.

It is an arithmetic number, because the mean of its divisors is an integer number (81952563).

Almost surely, 2^327760661 is an apocalyptic number.

It is an amenable number.

327760661 is a deficient number, since it is larger than the sum of its proper divisors (49591).

327760661 is an equidigital number, since it uses as much as digits as its factorization.

327760661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49590.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 327760661 is about 18104.1614276939. The cubic root of 327760661 is about 689.4756648074.

The spelling of 327760661 in words is "three hundred twenty-seven million, seven hundred sixty thousand, six hundred sixty-one".