13809377 has 2 divisors, whose sum is σ = 13809378. Its totient is φ = 13809376.

The previous prime is 13809373. The next prime is 13809413. The reversal of 13809377 is 77390831.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12645136 + 1164241 = 3556^2 + 1079^2 .

It is a cyclic number.

It is not a de Polignac number, because 13809377 - 2² = 13809373 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13809377.

It is not a weakly prime, because it can be changed into another prime (13809373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6904688 + 6904689.

It is an arithmetic number, because the mean of its divisors is an integer number (6904689).

Almost surely, 2^13809377 is an apocalyptic number.

It is an amenable number.

13809377 is a deficient number, since it is larger than the sum of its proper divisors (1).

13809377 is an equidigital number, since it uses as much as digits as its factorization.

13809377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 13809377 is about 3716.0970116508. The cubic root of 13809377 is about 239.9153463015.

The spelling of 13809377 in words is "thirteen million, eight hundred nine thousand, three hundred seventy-seven".