689161276 has 6 divisors (see below), whose sum is σ = 1206032240. Its totient is φ = 344580636.

The previous prime is 689161273. The next prime is 689161303. The reversal of 689161276 is 672161986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689161273) 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, 86145156 + ... + 86145163.

Almost surely, 2^689161276 is an apocalyptic number.

It is an amenable number.

689161276 is a deficient number, since it is larger than the sum of its proper divisors (516870964).

689161276 is a wasteful number, since it uses less digits than its factorization.

689161276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172290323 (or 172290321 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 689161276 is about 26251.8813801983. The cubic root of 689161276 is about 883.2974069009.

The spelling of 689161276 in words is "six hundred eighty-nine million, one hundred sixty-one thousand, two hundred seventy-six".