668076877 has 16 divisors (see below), whose sum is σ = 751661568. Its totient is φ = 589573440.

The previous prime is 668076859. The next prime is 668076887. The reversal of 668076877 is 778670866.

It is a happy number.

668076877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 668076877 - 2⁷ = 668076749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668076817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23463 + ... + 43435.

It is an arithmetic number, because the mean of its divisors is an integer number (46978848).

Almost surely, 2^668076877 is an apocalyptic number.

It is an amenable number.

668076877 is a deficient number, since it is larger than the sum of its proper divisors (83584691).

668076877 is a wasteful number, since it uses less digits than its factorization.

668076877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20100.

The product of its (nonzero) digits is 4741632, while the sum is 55.

The square root of 668076877 is about 25847.1831540692. The cubic root of 668076877 is about 874.1959970243.

The spelling of 668076877 in words is "six hundred sixty-eight million, seventy-six thousand, eight hundred seventy-seven".