13929417 has 6 divisors (see below), whose sum is σ = 20120282. Its totient is φ = 9286272.

The previous prime is 13929371. The next prime is 13929431. The reversal of 13929417 is 71492931.

13929417 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13461561 + 467856 = 3669^2 + 684^2 .

It is not a de Polignac number, because 13929417 - 2¹² = 13925321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13929457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 773848 + ... + 773865.

Almost surely, 2^13929417 is an apocalyptic number.

It is an amenable number.

13929417 is a deficient number, since it is larger than the sum of its proper divisors (6190865).

13929417 is a wasteful number, since it uses less digits than its factorization.

13929417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547719 (or 1547716 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 13929417 is about 3732.2134183350. The cubic root of 13929417 is about 240.6085079381.

The spelling of 13929417 in words is "thirteen million, nine hundred twenty-nine thousand, four hundred seventeen".