13959471 has 16 divisors (see below), whose sum is σ = 20124800. Its totient is φ = 8576928.

The previous prime is 13959467. The next prime is 13959493. The reversal of 13959471 is 17495931.

It is a happy number.

It is not a de Polignac number, because 13959471 - 2² = 13959467 is a prime.

It is a super-3 number, since 3×13959471³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13959401) 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 15 ways as a sum of consecutive naturals, for example, 1201 + ... + 5418.

It is an arithmetic number, because the mean of its divisors is an integer number (1257800).

Almost surely, 2^13959471 is an apocalyptic number.

13959471 is a deficient number, since it is larger than the sum of its proper divisors (6165329).

13959471 is a wasteful number, since it uses less digits than its factorization.

13959471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6678.

The product of its digits is 34020, while the sum is 39.

The square root of 13959471 is about 3736.2375459813. The cubic root of 13959471 is about 240.7814286384.

The spelling of 13959471 in words is "thirteen million, nine hundred fifty-nine thousand, four hundred seventy-one".