13942783 has 2 divisors, whose sum is σ = 13942784. Its totient is φ = 13942782.

The previous prime is 13942769. The next prime is 13942811. The reversal of 13942783 is 38724931.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13942783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13945783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6971391 + 6971392.

It is an arithmetic number, because the mean of its divisors is an integer number (6971392).

Almost surely, 2^13942783 is an apocalyptic number.

13942783 is a deficient number, since it is larger than the sum of its proper divisors (1).

13942783 is an equidigital number, since it uses as much as digits as its factorization.

13942783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 13942783 is about 3734.0036154241. The cubic root of 13942783 is about 240.6854421279.

The spelling of 13942783 in words is "thirteen million, nine hundred forty-two thousand, seven hundred eighty-three".