689496171 has 48 divisors (see below), whose sum is σ = 1145293056. Its totient is φ = 361266048.

The previous prime is 689496131. The next prime is 689496179. The reversal of 689496171 is 171694986.

It is a happy number.

It is not a de Polignac number, because 689496171 - 2⁹ = 689495659 is a prime.

It is a super-2 number, since 2×689496171² = 950809939647322482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (689496179) 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 47 ways as a sum of consecutive naturals, for example, 613416 + ... + 614538.

It is an arithmetic number, because the mean of its divisors is an integer number (23860272).

Almost surely, 2^689496171 is an apocalyptic number.

689496171 is a deficient number, since it is larger than the sum of its proper divisors (455796885).

689496171 is a wasteful number, since it uses less digits than its factorization.

689496171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332 (or 1319 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 689496171 is about 26258.2591007096. The cubic root of 689496171 is about 883.4404619409.

The spelling of 689496171 in words is "six hundred eighty-nine million, four hundred ninety-six thousand, one hundred seventy-one".