8681377 has 2 divisors, whose sum is σ = 8681378. Its totient is φ = 8681376.

The previous prime is 8681369. The next prime is 8681401. The reversal of 8681377 is 7731868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5527201 + 3154176 = 2351^2 + 1776^2 .

It is a cyclic number.

It is not a de Polignac number, because 8681377 - 2³ = 8681369 is a prime.

It is a super-2 number, since 2×8681377² = 150732613232258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8681317) 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, 4340688 + 4340689.

It is an arithmetic number, because the mean of its divisors is an integer number (4340689).

Almost surely, 2^8681377 is an apocalyptic number.

It is an amenable number.

8681377 is a deficient number, since it is larger than the sum of its proper divisors (1).

8681377 is an equidigital number, since it uses as much as digits as its factorization.

8681377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The square root of 8681377 is about 2946.4176553910. The cubic root of 8681377 is about 205.5241553963.

The spelling of 8681377 in words is "eight million, six hundred eighty-one thousand, three hundred seventy-seven".