689203746 has 48 divisors (see below), whose sum is σ = 1861748928. Its totient is φ = 179013600.

The previous prime is 689203709. The next prime is 689203747. The reversal of 689203746 is 647302986.

It is not an unprimeable number, because it can be changed into a prime (689203747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247245 + ... + 250016.

It is an arithmetic number, because the mean of its divisors is an integer number (38786436).

Almost surely, 2^689203746 is an apocalyptic number.

689203746 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

689203746 is an abundant number, since it is smaller than the sum of its proper divisors (1172545182).

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

689203746 is a wasteful number, since it uses less digits than its factorization.

689203746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497287 (or 497284 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 689203746 is about 26252.6902621427. The cubic root of 689203746 is about 883.3155511155.

The spelling of 689203746 in words is "six hundred eighty-nine million, two hundred three thousand, seven hundred forty-six".