13377977 has 2 divisors, whose sum is σ = 13377978. Its totient is φ = 13377976.

The previous prime is 13377967. The next prime is 13378003. The reversal of 13377977 is 77977331.

13377977 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10569001 + 2808976 = 3251^2 + 1676^2 .

It is an emirp because it is prime and its reverse (77977331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13377977 - 2¹⁰ = 13376953 is a prime.

It is a super-2 number, since 2×13377977² = 357940537225058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13377937) by changing a digit.

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, 6688988 + 6688989.

It is an arithmetic number, because the mean of its divisors is an integer number (6688989).

Almost surely, 2^13377977 is an apocalyptic number.

It is an amenable number.

13377977 is a deficient number, since it is larger than the sum of its proper divisors (1).

13377977 is an equidigital number, since it uses as much as digits as its factorization.

13377977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194481, while the sum is 44.

The square root of 13377977 is about 3657.5916939976. The cubic root of 13377977 is about 237.3905800672.

The spelling of 13377977 in words is "thirteen million, three hundred seventy-seven thousand, nine hundred seventy-seven".