13778794 has 8 divisors (see below), whose sum is σ = 21566880. Its totient is φ = 6589836.

The previous prime is 13778773. The next prime is 13778803. The reversal of 13778794 is 49787731.

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

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 299539 = 13778794 / (1 + 3 + 7 + 7 + 8 + 7 + 9 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149724 + ... + 149815.

It is an arithmetic number, because the mean of its divisors is an integer number (2695860).

Almost surely, 2^13778794 is an apocalyptic number.

13778794 is a deficient number, since it is larger than the sum of its proper divisors (7788086).

13778794 is a wasteful number, since it uses less digits than its factorization.

13778794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299564.

The product of its digits is 296352, while the sum is 46.

The square root of 13778794 is about 3711.9797952036. The cubic root of 13778794 is about 239.7381055213.

The spelling of 13778794 in words is "thirteen million, seven hundred seventy-eight thousand, seven hundred ninety-four".