1216327 has 12 divisors (see below), whose sum is σ = 1434576. Its totient is φ = 1028160.

The previous prime is 1216277. The next prime is 1216337. The reversal of 1216327 is 7236121.

It is a de Polignac number, because none of the positive numbers 2^k-1216327 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1216298 and 1216307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4927 + ... + 5167.

It is an arithmetic number, because the mean of its divisors is an integer number (119548).

2^1216327 is an apocalyptic number.

1216327 is a deficient number, since it is larger than the sum of its proper divisors (218249).

1216327 is a wasteful number, since it uses less digits than its factorization.

1216327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 351 counting only the distinct ones).

The product of its digits is 504, while the sum is 22.

The square root of 1216327 is about 1102.8721594092. The cubic root of 1216327 is about 106.7456327157.

It can be divided in two parts, 121 and 6327, that multiplied together give a palindrome (765567).

The spelling of 1216327 in words is "one million, two hundred sixteen thousand, three hundred twenty-seven".