13917072 has 40 divisors (see below), whose sum is σ = 38719744. Its totient is φ = 4281984.

The previous prime is 13917061. The next prime is 13917077. The reversal of 13917072 is 27071931.

It is not an unprimeable number, because it can be changed into a prime (13917077) 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 7 ways as a sum of consecutive naturals, for example, 10528 + ... + 11775.

Almost surely, 2^13917072 is an apocalyptic number.

13917072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13917072 is an abundant number, since it is smaller than the sum of its proper divisors (24802672).

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

13917072 is a wasteful number, since it uses less digits than its factorization.

13917072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22327 (or 22321 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 13917072 is about 3730.5592074111. The cubic root of 13917072 is about 240.5374068541.

The spelling of 13917072 in words is "thirteen million, nine hundred seventeen thousand, seventy-two".