13777328 has 10 divisors (see below), whose sum is σ = 26693604. Its totient is φ = 6888656.

The previous prime is 13777307. The next prime is 13777331. The reversal of 13777328 is 82377731.

It is a junction number, because it is equal to n+sod(n) for n = 13777291 and 13777300.

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 as a sum of consecutive naturals, namely, 430526 + ... + 430557.

Almost surely, 2^13777328 is an apocalyptic number.

It is an amenable number.

13777328 is a deficient number, since it is larger than the sum of its proper divisors (12916276).

13777328 is an equidigital number, since it uses as much as digits as its factorization.

13777328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861091 (or 861085 counting only the distinct ones).

The product of its digits is 49392, while the sum is 38.

The square root of 13777328 is about 3711.7823212037. The cubic root of 13777328 is about 239.7296028776.

The spelling of 13777328 in words is "thirteen million, seven hundred seventy-seven thousand, three hundred twenty-eight".