689359242 has 32 divisors (see below), whose sum is σ = 1619755200. Its totient is φ = 192827520.

The previous prime is 689359213. The next prime is 689359267. The reversal of 689359242 is 242953986.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 689359191 and 689359200.

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 15 ways as a sum of consecutive naturals, for example, 400867 + ... + 402582.

It is an arithmetic number, because the mean of its divisors is an integer number (50617350).

Almost surely, 2^689359242 is an apocalyptic number.

689359242 is an abundant number, since it is smaller than the sum of its proper divisors (930395958).

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

689359242 is a wasteful number, since it uses less digits than its factorization.

689359242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803478.

The product of its digits is 933120, while the sum is 48.

The square root of 689359242 is about 26255.6516201750. The cubic root of 689359242 is about 883.3819764202.

The spelling of 689359242 in words is "six hundred eighty-nine million, three hundred fifty-nine thousand, two hundred forty-two".