13643707 has 24 divisors (see below), whose sum is σ = 18344880. Its totient is φ = 9999360.

The previous prime is 13643683. The next prime is 13643711. The reversal of 13643707 is 70734631.

It is not a de Polignac number, because 13643707 - 2²³ = 5255099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13643797) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8419 + ... + 9907.

It is an arithmetic number, because the mean of its divisors is an integer number (764370).

Almost surely, 2^13643707 is an apocalyptic number.

13643707 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13643707 is a deficient number, since it is larger than the sum of its proper divisors (4701173).

13643707 is a wasteful number, since it uses less digits than its factorization.

13643707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531 (or 1524 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 13643707 is about 3693.7388916923. The cubic root of 13643707 is about 238.9520687247.

The spelling of 13643707 in words is "thirteen million, six hundred forty-three thousand, seven hundred seven".