689414783 has 4 divisors (see below), whose sum is σ = 689467488. Its totient is φ = 689362080.

The previous prime is 689414779. The next prime is 689414807. The reversal of 689414783 is 387414986.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 689414783 - 2² = 689414779 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689414723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9818 + ... + 38408.

It is an arithmetic number, because the mean of its divisors is an integer number (172366872).

Almost surely, 2^689414783 is an apocalyptic number.

689414783 is a deficient number, since it is larger than the sum of its proper divisors (52705).

689414783 is a wasteful number, since it uses less digits than its factorization.

689414783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52704.

The product of its digits is 1161216, while the sum is 50.

The square root of 689414783 is about 26256.7092949593. The cubic root of 689414783 is about 883.4057001904.

The spelling of 689414783 in words is "six hundred eighty-nine million, four hundred fourteen thousand, seven hundred eighty-three".