13705923 has 16 divisors (see below), whose sum is σ = 22784256. Its totient is φ = 7119840.

The previous prime is 13705919. The next prime is 13705963. The reversal of 13705923 is 32950731.

It is not a de Polignac number, because 13705923 - 2² = 13705919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13705903) 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, 29436 + ... + 29897.

It is an arithmetic number, because the mean of its divisors is an integer number (1424016).

Almost surely, 2^13705923 is an apocalyptic number.

13705923 is a deficient number, since it is larger than the sum of its proper divisors (9078333).

13705923 is a wasteful number, since it uses less digits than its factorization.

13705923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59354.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 13705923 is about 3702.1511314370. The cubic root of 13705923 is about 239.3147292400.

The spelling of 13705923 in words is "thirteen million, seven hundred five thousand, nine hundred twenty-three".