13671663 has 8 divisors (see below), whose sum is σ = 18409776. Its totient is φ = 9024000.

The previous prime is 13671653. The next prime is 13671701. The reversal of 13671663 is 36617631.

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

It is not a de Polignac number, because 13671663 - 2⁶ = 13671599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13671613) 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, 22258 + ... + 22863.

It is an arithmetic number, because the mean of its divisors is an integer number (2301222).

Almost surely, 2^13671663 is an apocalyptic number.

13671663 is a deficient number, since it is larger than the sum of its proper divisors (4738113).

13671663 is a wasteful number, since it uses less digits than its factorization.

13671663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45225.

The product of its digits is 13608, while the sum is 33.

The square root of 13671663 is about 3697.5211966938. The cubic root of 13671663 is about 239.1151619044.

The spelling of 13671663 in words is "thirteen million, six hundred seventy-one thousand, six hundred sixty-three".