8377681 has 8 divisors (see below), whose sum is σ = 9414720. Its totient is φ = 7396752.

The previous prime is 8377673. The next prime is 8377693. The reversal of 8377681 is 1867738.

8377681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8377681 - 2³ = 8377673 is a prime.

It is a super-2 number, since 2×8377681² = 140371077875522, which contains 22 as substring.

It is a Duffinian number.

8377681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8377601) 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, 13711 + ... + 14308.

It is an arithmetic number, because the mean of its divisors is an integer number (1176840).

Almost surely, 2^8377681 is an apocalyptic number.

It is an amenable number.

8377681 is a deficient number, since it is larger than the sum of its proper divisors (1037039).

8377681 is a wasteful number, since it uses less digits than its factorization.

8377681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28055.

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

The square root of 8377681 is about 2894.4223948830. The cubic root of 8377681 is about 203.0990723830.

The spelling of 8377681 in words is "eight million, three hundred seventy-seven thousand, six hundred eighty-one".