1213876 has 6 divisors (see below), whose sum is σ = 2124290. Its totient is φ = 606936.

The previous prime is 1213873. The next prime is 1213879. The reversal of 1213876 is 6783121.

It is an interprime number because it is at equal distance from previous prime (1213873) and next prime (1213879).

It can be written as a sum of positive squares in only one way, i.e., 756900 + 456976 = 870^2 + 676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151731 + ... + 151738.

2^1213876 is an apocalyptic number.

It is an amenable number.

1213876 is a deficient number, since it is larger than the sum of its proper divisors (910414).

1213876 is a wasteful number, since it uses less digits than its factorization.

1213876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303473 (or 303471 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 1213876 is about 1101.7604095265. The cubic root of 1213876 is about 106.6738840602.

Adding to 1213876 its reverse (6783121), we get a palindrome (7996997).

It can be divided in two parts, 121 and 3876, that multiplied together give a triangular number (468996 = T₉₆₈).

The spelling of 1213876 in words is "one million, two hundred thirteen thousand, eight hundred seventy-six".