13929616 has 10 divisors (see below), whose sum is σ = 26988662. Its totient is φ = 6964800.

The previous prime is 13929611. The next prime is 13929631. The reversal of 13929616 is 61692931.

It can be written as a sum of positive squares in only one way, i.e., 12250000 + 1679616 = 3500^2 + 1296^2 .

It is not an unprimeable number, because it can be changed into a prime (13929611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435285 + ... + 435316.

Almost surely, 2^13929616 is an apocalyptic number.

13929616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13929616 is a deficient number, since it is larger than the sum of its proper divisors (13059046).

13929616 is an equidigital number, since it uses as much as digits as its factorization.

13929616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870609 (or 870603 counting only the distinct ones).

The product of its digits is 17496, while the sum is 37.

The square root of 13929616 is about 3732.2400780228. The cubic root of 13929616 is about 240.6096537354.

The spelling of 13929616 in words is "thirteen million, nine hundred twenty-nine thousand, six hundred sixteen".