689473146 has 8 divisors (see below), whose sum is σ = 1378946304. Its totient is φ = 229824380.

The previous prime is 689473129. The next prime is 689473151. The reversal of 689473146 is 641374986.

It is a sphenic number, since it is the product of 3 distinct primes.

689473146 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 689473095 and 689473104.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 57456090 + ... + 57456101.

It is an arithmetic number, because the mean of its divisors is an integer number (172368288).

Almost surely, 2^689473146 is an apocalyptic number.

689473146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

689473146 is a wasteful number, since it uses less digits than its factorization.

689473146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114912196.

The product of its digits is 870912, while the sum is 48.

The square root of 689473146 is about 26257.8206635661. The cubic root of 689473146 is about 883.4306279762.

The spelling of 689473146 in words is "six hundred eighty-nine million, four hundred seventy-three thousand, one hundred forty-six".