13709403 has 24 divisors (see below), whose sum is σ = 20896512. Its totient is φ = 8643888.

The previous prime is 13709387. The next prime is 13709413. The reversal of 13709403 is 30490731.

It is not a de Polignac number, because 13709403 - 2⁴ = 13709387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13709413) 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 23 ways as a sum of consecutive naturals, for example, 21000 + ... + 21642.

It is an arithmetic number, because the mean of its divisors is an integer number (870688).

Almost surely, 2^13709403 is an apocalyptic number.

13709403 is a deficient number, since it is larger than the sum of its proper divisors (7187109).

13709403 is a wasteful number, since it uses less digits than its factorization.

13709403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 13709403 is about 3702.6210986273. The cubic root of 13709403 is about 239.3349819143.

The spelling of 13709403 in words is "thirteen million, seven hundred nine thousand, four hundred three".