13929998 has 8 divisors (see below), whose sum is σ = 20979000. Its totient is φ = 6937000.

The previous prime is 13929997. The next prime is 13930003. The reversal of 13929998 is 89992931.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13929997) 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 3 ways as a sum of consecutive naturals, for example, 13373 + ... + 14376.

It is an arithmetic number, because the mean of its divisors is an integer number (2622375).

Almost surely, 2^13929998 is an apocalyptic number.

13929998 is a deficient number, since it is larger than the sum of its proper divisors (7049002).

13929998 is a wasteful number, since it uses less digits than its factorization.

13929998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28002.

The product of its digits is 314928, while the sum is 50.

The square root of 13929998 is about 3732.2912533724. The cubic root of 13929998 is about 240.6118531750.

The spelling of 13929998 in words is "thirteen million, nine hundred twenty-nine thousand, nine hundred ninety-eight".