689617092 has 24 divisors (see below), whose sum is σ = 1625041152. Its totient is φ = 227596000.

The previous prime is 689617081. The next prime is 689617099. The reversal of 689617092 is 290716986.

It is not an unprimeable number, because it can be changed into a prime (689617099) 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, 283284 + ... + 285707.

It is an arithmetic number, because the mean of its divisors is an integer number (67710048).

Almost surely, 2^689617092 is an apocalyptic number.

It is an amenable number.

689617092 is an abundant number, since it is smaller than the sum of its proper divisors (935424060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689617092 is a wasteful number, since it uses less digits than its factorization.

689617092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569099 (or 569097 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 689617092 is about 26260.5615324578. The cubic root of 689617092 is about 883.4921036392.

The spelling of 689617092 in words is "six hundred eighty-nine million, six hundred seventeen thousand, ninety-two".