13679746 has 4 divisors (see below), whose sum is σ = 20519622. Its totient is φ = 6839872.

The previous prime is 13679737. The next prime is 13679749. The reversal of 13679746 is 64797631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64797631 = 47 ⋅1378673.

It can be written as a sum of positive squares in only one way, i.e., 8791225 + 4888521 = 2965^2 + 2211^2 .

It is not an unprimeable number, because it can be changed into a prime (13679749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3419935 + ... + 3419938.

Almost surely, 2^13679746 is an apocalyptic number.

13679746 is a deficient number, since it is larger than the sum of its proper divisors (6839876).

13679746 is an equidigital number, since it uses as much as digits as its factorization.

13679746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6839875.

The product of its digits is 190512, while the sum is 43.

The square root of 13679746 is about 3698.6140647545. The cubic root of 13679746 is about 239.1622760724.

The spelling of 13679746 in words is "thirteen million, six hundred seventy-nine thousand, seven hundred forty-six".