13721934 has 8 divisors (see below), whose sum is σ = 27443880. Its totient is φ = 4573976.

The previous prime is 13721927. The next prime is 13721987. The reversal of 13721934 is 43912731.

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

13721934 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1143489 + ... + 1143500.

It is an arithmetic number, because the mean of its divisors is an integer number (3430485).

Almost surely, 2^13721934 is an apocalyptic number.

13721934 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13721934 is a wasteful number, since it uses less digits than its factorization.

13721934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286994.

The product of its digits is 4536, while the sum is 30.

The square root of 13721934 is about 3704.3128917520. The cubic root of 13721934 is about 239.4078806235.

The spelling of 13721934 in words is "thirteen million, seven hundred twenty-one thousand, nine hundred thirty-four".