677686065 has 32 divisors (see below), whose sum is σ = 1281934080. Its totient is φ = 299115264.

The previous prime is 677686057. The next prime is 677686067. The reversal of 677686065 is 560686776.

It is a happy number.

It is not a de Polignac number, because 677686065 - 2³ = 677686057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 677685999 and 677686017.

It is not an unprimeable number, because it can be changed into a prime (677686067) 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 in 31 ways as a sum of consecutive naturals, for example, 108234 + ... + 114323.

It is an arithmetic number, because the mean of its divisors is an integer number (40060440).

Almost surely, 2^677686065 is an apocalyptic number.

It is an amenable number.

677686065 is a deficient number, since it is larger than the sum of its proper divisors (604248015).

677686065 is a wasteful number, since it uses less digits than its factorization.

677686065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222601.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The square root of 677686065 is about 26032.4041340787. The cubic root of 677686065 is about 878.3673520697.

The spelling of 677686065 in words is "six hundred seventy-seven million, six hundred eighty-six thousand, sixty-five".