13903406 has 16 divisors (see below), whose sum is σ = 22813488. Its totient is φ = 6302400.

The previous prime is 13903397. The next prime is 13903429. The reversal of 13903406 is 60430931.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 10856 + ... + 12068.

It is an arithmetic number, because the mean of its divisors is an integer number (1425843).

Almost surely, 2^13903406 is an apocalyptic number.

13903406 is a deficient number, since it is larger than the sum of its proper divisors (8910082).

13903406 is a wasteful number, since it uses less digits than its factorization.

13903406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 13903406 is about 3728.7271286593. The cubic root of 13903406 is about 240.4586484114.

The spelling of 13903406 in words is "thirteen million, nine hundred three thousand, four hundred six".