13776401 has 8 divisors (see below), whose sum is σ = 13992000. Its totient is φ = 13562640.

The previous prime is 13776397. The next prime is 13776419. The reversal of 13776401 is 10467731.

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 13776401 - 2² = 13776397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13776481) 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, 22700 + ... + 23298.

It is an arithmetic number, because the mean of its divisors is an integer number (1749000).

Almost surely, 2^13776401 is an apocalyptic number.

It is an amenable number.

13776401 is a deficient number, since it is larger than the sum of its proper divisors (215599).

13776401 is a wasteful number, since it uses less digits than its factorization.

13776401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 13776401 is about 3711.6574464786. The cubic root of 13776401 is about 239.7242260652.

The spelling of 13776401 in words is "thirteen million, seven hundred seventy-six thousand, four hundred one".