689138714 has 16 divisors (see below), whose sum is σ = 1131039936. Its totient is φ = 312312000.

The previous prime is 689138713. The next prime is 689138729. The reversal of 689138714 is 417831986.

It is not an unprimeable number, because it can be changed into a prime (689138713) 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 7 ways as a sum of consecutive naturals, for example, 39062 + ... + 53889.

It is an arithmetic number, because the mean of its divisors is an integer number (70689996).

Almost surely, 2^689138714 is an apocalyptic number.

689138714 is a deficient number, since it is larger than the sum of its proper divisors (441901222).

689138714 is a wasteful number, since it uses less digits than its factorization.

689138714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93301.

The product of its digits is 290304, while the sum is 47.

The square root of 689138714 is about 26251.4516550990. The cubic root of 689138714 is about 883.2877675637.

The spelling of 689138714 in words is "six hundred eighty-nine million, one hundred thirty-eight thousand, seven hundred fourteen".