680727134 has 4 divisors (see below), whose sum is σ = 1021090704. Its totient is φ = 340363566.

The previous prime is 680727119. The next prime is 680727137. The reversal of 680727134 is 431727086.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680727137) 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 as a sum of consecutive naturals, namely, 170181782 + ... + 170181785.

It is an arithmetic number, because the mean of its divisors is an integer number (255272676).

Almost surely, 2^680727134 is an apocalyptic number.

680727134 is a deficient number, since it is larger than the sum of its proper divisors (340363570).

680727134 is a wasteful number, since it uses less digits than its factorization.

680727134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340363569.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 680727134 is about 26090.7480536684. The cubic root of 680727134 is about 879.6792624179.

The spelling of 680727134 in words is "six hundred eighty million, seven hundred twenty-seven thousand, one hundred thirty-four".