1377321 has 8 divisors (see below), whose sum is σ = 2003424. Its totient is φ = 834720.

The previous prime is 1377317. The next prime is 1377347. The reversal of 1377321 is 1237731.

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

It is not a de Polignac number, because 1377321 - 2² = 1377317 is a prime.

1377321 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1377291 and 1377300.

It is not an unprimeable number, because it can be changed into a prime (1377371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20836 + ... + 20901.

It is an arithmetic number, because the mean of its divisors is an integer number (250428).

2^1377321 is an apocalyptic number.

1377321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1377321 is a deficient number, since it is larger than the sum of its proper divisors (626103).

1377321 is a wasteful number, since it uses less digits than its factorization.

1377321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41751.

The product of its digits is 882, while the sum is 24.

The square root of 1377321 is about 1173.5932003893. The cubic root of 1377321 is about 111.2615373297.

The spelling of 1377321 in words is "one million, three hundred seventy-seven thousand, three hundred twenty-one".