13705747 has 8 divisors (see below), whose sum is σ = 15234480. Its totient is φ = 12224160.

The previous prime is 13705739. The next prime is 13705753. The reversal of 13705747 is 74750731.

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

It is a cyclic number.

It is not a de Polignac number, because 13705747 - 2³ = 13705739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13705147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11172 + ... + 12337.

It is an arithmetic number, because the mean of its divisors is an integer number (1904310).

Almost surely, 2^13705747 is an apocalyptic number.

13705747 is a deficient number, since it is larger than the sum of its proper divisors (1528733).

13705747 is a wasteful number, since it uses less digits than its factorization.

13705747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23573.

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 13705747 is about 3702.1273613964. The cubic root of 13705747 is about 239.3137048757.

It can be divided in two parts, 1370 and 5747, that added together give a palindrome (7117).

The spelling of 13705747 in words is "thirteen million, seven hundred five thousand, seven hundred forty-seven".