1327123684 has 6 divisors (see below), whose sum is σ = 2322466454. Its totient is φ = 663561840.

The previous prime is 1327123673. The next prime is 1327123687. The reversal of 1327123684 is 4863217231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 860131584 + 466992100 = 29328^2 + 21610^2 .

It is a super-2 number, since 2×1327123684² = 3522514545267463712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1327123687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165890457 + ... + 165890464.

Almost surely, 2^1327123684 is an apocalyptic number.

It is an amenable number.

1327123684 is a deficient number, since it is larger than the sum of its proper divisors (995342770).

1327123684 is a wasteful number, since it uses less digits than its factorization.

1327123684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331780925 (or 331780923 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 1327123684 is about 36429.7088102554. The cubic root of 1327123684 is about 1098.9311060215.

The spelling of 1327123684 in words is "one billion, three hundred twenty-seven million, one hundred twenty-three thousand, six hundred eighty-four".