13709953 has 8 divisors (see below), whose sum is σ = 14250600. Its totient is φ = 13173888.

The previous prime is 13709929. The next prime is 13709957. The reversal of 13709953 is 35990731.

It can be written as a sum of positive squares in 4 ways, for example, as 4297329 + 9412624 = 2073^2 + 3068^2 .

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

It is not a de Polignac number, because 13709953 - 2⁵ = 13709921 is a prime.

It is a super-2 number, since 2×13709953² = 375925622524418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13709957) 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, 5743 + ... + 7771.

It is an arithmetic number, because the mean of its divisors is an integer number (1781325).

Almost surely, 2^13709953 is an apocalyptic number.

It is an amenable number.

13709953 is a deficient number, since it is larger than the sum of its proper divisors (540647).

13709953 is a wasteful number, since it uses less digits than its factorization.

13709953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291.

The product of its (nonzero) digits is 25515, while the sum is 37.

The square root of 13709953 is about 3702.6953695923. The cubic root of 13709953 is about 239.3381824543.

The spelling of 13709953 in words is "thirteen million, seven hundred nine thousand, nine hundred fifty-three".