13679745 has 16 divisors (see below), whose sum is σ = 22135680. Its totient is φ = 7213184.

The previous prime is 13679737. The next prime is 13679749. The reversal of 13679745 is 54797631.

It is a cyclic number.

It is not a de Polignac number, because 13679745 - 2³ = 13679737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13679697 and 13679706.

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 in 15 ways as a sum of consecutive naturals, for example, 3789 + ... + 6458.

It is an arithmetic number, because the mean of its divisors is an integer number (1383480).

Almost surely, 2^13679745 is an apocalyptic number.

13679745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13679745 is a deficient number, since it is larger than the sum of its proper divisors (8455935).

13679745 is a wasteful number, since it uses less digits than its factorization.

13679745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10344.

The product of its digits is 158760, while the sum is 42.

The square root of 13679745 is about 3698.6139295688. The cubic root of 13679745 is about 239.1622702447.

The spelling of 13679745 in words is "thirteen million, six hundred seventy-nine thousand, seven hundred forty-five".