13872773 has 2 divisors, whose sum is σ = 13872774. Its totient is φ = 13872772.

The previous prime is 13872763. The next prime is 13872787. The reversal of 13872773 is 37727831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10975969 + 2896804 = 3313^2 + 1702^2 .

It is a cyclic number.

It is not a de Polignac number, because 13872773 - 2⁸ = 13872517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13872763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6936386 + 6936387.

It is an arithmetic number, because the mean of its divisors is an integer number (6936387).

Almost surely, 2^13872773 is an apocalyptic number.

It is an amenable number.

13872773 is a deficient number, since it is larger than the sum of its proper divisors (1).

13872773 is an equidigital number, since it uses as much as digits as its factorization.

13872773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49392, while the sum is 38.

The square root of 13872773 is about 3724.6171615349. The cubic root of 13872773 is about 240.2819198660.

It can be divided in two parts, 1387 and 2773, that multiplied together give a triangular number (3846151 = T₂₇₇₃).

The spelling of 13872773 in words is "thirteen million, eight hundred seventy-two thousand, seven hundred seventy-three".