689611794 has 16 divisors (see below), whose sum is σ = 1379719200. Its totient is φ = 229788000.

The previous prime is 689611789. The next prime is 689611807. The reversal of 689611794 is 497116986.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1144 + ... + 37155.

It is an arithmetic number, because the mean of its divisors is an integer number (86232450).

Almost surely, 2^689611794 is an apocalyptic number.

689611794 is an abundant number, since it is smaller than the sum of its proper divisors (690107406).

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

689611794 is a wasteful number, since it uses less digits than its factorization.

689611794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41305.

The product of its digits is 653184, while the sum is 51.

The square root of 689611794 is about 26260.4606585642. The cubic root of 689611794 is about 883.4898411503.

The spelling of 689611794 in words is "six hundred eighty-nine million, six hundred eleven thousand, seven hundred ninety-four".