680626077 has 8 divisors (see below), whose sum is σ = 907720416. Its totient is φ = 453641232.

The previous prime is 680626057. The next prime is 680626153. The reversal of 680626077 is 770626086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680626077 - 2¹⁴ = 680609693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680626057) 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, 11563 + ... + 38664.

It is an arithmetic number, because the mean of its divisors is an integer number (113465052).

Almost surely, 2^680626077 is an apocalyptic number.

It is an amenable number.

680626077 is a deficient number, since it is larger than the sum of its proper divisors (227094339).

680626077 is a wasteful number, since it uses less digits than its factorization.

680626077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54747.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 680626077 is about 26088.8113374297. The cubic root of 680626077 is about 879.6357294847.

Subtracting 680626077 from its reverse (770626086), we obtain a palindrome (90000009).

The spelling of 680626077 in words is "six hundred eighty million, six hundred twenty-six thousand, seventy-seven".