13406863 has 8 divisors (see below), whose sum is σ = 14273280. Its totient is φ = 12549120.

The previous prime is 13406843. The next prime is 13406879. The reversal of 13406863 is 36860431.

13406863 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13406863 - 2¹⁷ = 13275791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13406803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1183 + ... + 5311.

It is an arithmetic number, because the mean of its divisors is an integer number (1784160).

Almost surely, 2^13406863 is an apocalyptic number.

13406863 is a deficient number, since it is larger than the sum of its proper divisors (866417).

13406863 is a wasteful number, since it uses less digits than its factorization.

13406863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 13406863 is about 3661.5383379121. The cubic root of 13406863 is about 237.5613167628.

The spelling of 13406863 in words is "thirteen million, four hundred six thousand, eight hundred sixty-three".