13912774 has 4 divisors (see below), whose sum is σ = 20869164. Its totient is φ = 6956386.

The previous prime is 13912771. The next prime is 13912781. The reversal of 13912774 is 47721931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47721931 = 1723 ⋅27697.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13912771) 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 as a sum of consecutive naturals, namely, 3478192 + ... + 3478195.

It is an arithmetic number, because the mean of its divisors is an integer number (5217291).

Almost surely, 2^13912774 is an apocalyptic number.

13912774 is a deficient number, since it is larger than the sum of its proper divisors (6956390).

13912774 is an equidigital number, since it uses as much as digits as its factorization.

13912774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6956389.

The product of its digits is 10584, while the sum is 34.

The square root of 13912774 is about 3729.9831098813. The cubic root of 13912774 is about 240.5126426360.

The spelling of 13912774 in words is "thirteen million, nine hundred twelve thousand, seven hundred seventy-four".