1216996 has 24 divisors (see below), whose sum is σ = 2461536. Its totient is φ = 520320.

The previous prime is 1216987. The next prime is 1216997. The reversal of 1216996 is 6996121.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (1216997) 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, 66 + ... + 1561.

It is an arithmetic number, because the mean of its divisors is an integer number (102564).

2^1216996 is an apocalyptic number.

It is an amenable number.

1216996 is an abundant number, since it is smaller than the sum of its proper divisors (1244540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1216996 is a wasteful number, since it uses less digits than its factorization.

1216996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659 (or 1657 counting only the distinct ones).

The product of its digits is 5832, while the sum is 34.

The square root of 1216996 is about 1103.1754166949. The cubic root of 1216996 is about 106.7651997509.

It can be divided in two parts, 121 and 6996, that added together give a palindrome (7117).

The spelling of 1216996 in words is "one million, two hundred sixteen thousand, nine hundred ninety-six".