689653179 has 6 divisors (see below), whose sum is σ = 996165716. Its totient is φ = 459768780.

The previous prime is 689653157. The next prime is 689653189. The reversal of 689653179 is 971356986.

It is not a de Polignac number, because 689653179 - 2¹⁵ = 689620411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689653109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38314057 + ... + 38314074.

Almost surely, 2^689653179 is an apocalyptic number.

689653179 is a deficient number, since it is larger than the sum of its proper divisors (306512537).

689653179 is a wasteful number, since it uses less digits than its factorization.

689653179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76628137 (or 76628134 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 689653179 is about 26261.2486184492. The cubic root of 689653179 is about 883.5075141348.

The spelling of 689653179 in words is "six hundred eighty-nine million, six hundred fifty-three thousand, one hundred seventy-nine".