1213884 has 36 divisors (see below), whose sum is σ = 3507504. Its totient is φ = 346752.

The previous prime is 1213879. The next prime is 1213897. The reversal of 1213884 is 4883121.

It is a tau number, because it is divible by the number of its divisors (36).

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2157 + ... + 2660.

2^1213884 is an apocalyptic number.

1213884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1213884 is an abundant number, since it is smaller than the sum of its proper divisors (2293620).

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

1213884 is a wasteful number, since it uses less digits than its factorization.

1213884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4834 (or 4829 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 1213884 is about 1101.7640400739. The cubic root of 1213884 is about 106.6741184030.

It can be divided in two parts, 121 and 3884, that multiplied together give a palindrome (469964).

The spelling of 1213884 in words is "one million, two hundred thirteen thousand, eight hundred eighty-four".