13959491 has 16 divisors (see below), whose sum is σ = 17326848. Its totient is φ = 10951200.

The previous prime is 13959467. The next prime is 13959493. The reversal of 13959491 is 19495931.

It is not a de Polignac number, because 13959491 - 2¹⁰ = 13958467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13959493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11336 + ... + 12506.

It is an arithmetic number, because the mean of its divisors is an integer number (1082928).

Almost surely, 2^13959491 is an apocalyptic number.

13959491 is a deficient number, since it is larger than the sum of its proper divisors (3367357).

13959491 is a wasteful number, since it uses less digits than its factorization.

13959491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322.

The product of its digits is 43740, while the sum is 41.

The square root of 13959491 is about 3736.2402224696. The cubic root of 13959491 is about 240.7815436291.

The spelling of 13959491 in words is "thirteen million, nine hundred fifty-nine thousand, four hundred ninety-one".