13928794 has 12 divisors (see below), whose sum is σ = 22965642. Its totient is φ = 6331160.

The previous prime is 13928791. The next prime is 13928833. The reversal of 13928794 is 49782931.

It can be written as a sum of positive squares in only one way, i.e., 13417569 + 511225 = 3663^2 + 715^2 .

It is a super-2 number, since 2×13928794² = 388022604588872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13928794.

It is not an unprimeable number, because it can be changed into a prime (13928791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28537 + ... + 29020.

Almost surely, 2^13928794 is an apocalyptic number.

13928794 is a deficient number, since it is larger than the sum of its proper divisors (9036848).

13928794 is a wasteful number, since it uses less digits than its factorization.

13928794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57581 (or 57570 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 13928794 is about 3732.1299548649. The cubic root of 13928794 is about 240.6049207735.

The spelling of 13928794 in words is "thirteen million, nine hundred twenty-eight thousand, seven hundred ninety-four".