13778283 has 8 divisors (see below), whose sum is σ = 18543168. Its totient is φ = 9099464.

The previous prime is 13778267. The next prime is 13778309. The reversal of 13778283 is 38287731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13778283 - 2⁴ = 13778267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13778213) 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, 21141 + ... + 21782.

It is an arithmetic number, because the mean of its divisors is an integer number (2317896).

Almost surely, 2^13778283 is an apocalyptic number.

13778283 is a deficient number, since it is larger than the sum of its proper divisors (4764885).

13778283 is a wasteful number, since it uses less digits than its factorization.

13778283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43033.

The product of its digits is 56448, while the sum is 39.

The square root of 13778283 is about 3711.9109633718. The cubic root of 13778283 is about 239.7351418443.

The spelling of 13778283 in words is "thirteen million, seven hundred seventy-eight thousand, two hundred eighty-three".