1327930021 has 8 divisors (see below), whose sum is σ = 1457879904. Its totient is φ = 1199518320.

The previous prime is 1327930013. The next prime is 1327930049. The reversal of 1327930021 is 1200397231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1327930021 - 2³ = 1327930013 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 (1327930091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382735 + ... + 386188.

It is an arithmetic number, because the mean of its divisors is an integer number (182234988).

Almost surely, 2^1327930021 is an apocalyptic number.

1327930021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1327930021 is a deficient number, since it is larger than the sum of its proper divisors (129949883).

1327930021 is a wasteful number, since it uses less digits than its factorization.

1327930021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769091.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 1327930021 is about 36440.7741547844. The cubic root of 1327930021 is about 1099.1536246963.

It can be divided in two parts, 132 and 7930021, that added together give a triangular number (7930153 = T₃₉₈₂).

The spelling of 1327930021 in words is "one billion, three hundred twenty-seven million, nine hundred thirty thousand, twenty-one".