13705630 has 16 divisors (see below), whose sum is σ = 24902640. Its totient is φ = 5430592.

The previous prime is 13705619. The next prime is 13705633. The reversal of 13705630 is 3650731.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13705595 and 13705604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13705633) 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 in 7 ways as a sum of consecutive naturals, for example, 5335 + ... + 7474.

It is an arithmetic number, because the mean of its divisors is an integer number (1556415).

Almost surely, 2^13705630 is an apocalyptic number.

13705630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13705630 is a deficient number, since it is larger than the sum of its proper divisors (11197010).

13705630 is a wasteful number, since it uses less digits than its factorization.

13705630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12923.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 13705630 is about 3702.1115596373. Note that the first 3 decimals coincide. The cubic root of 13705630 is about 239.3130239015.

The spelling of 13705630 in words is "thirteen million, seven hundred five thousand, six hundred thirty".