689481454 has 8 divisors (see below), whose sum is σ = 1034403048. Its totient is φ = 344680440.

The previous prime is 689481437. The next prime is 689481491. The reversal of 689481454 is 454184986.

It is a happy number.

689481454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 689481398 and 689481407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14152 + ... + 39739.

It is an arithmetic number, because the mean of its divisors is an integer number (129300381).

Almost surely, 2^689481454 is an apocalyptic number.

689481454 is a deficient number, since it is larger than the sum of its proper divisors (344921594).

689481454 is a wasteful number, since it uses less digits than its factorization.

689481454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60290.

The product of its digits is 1105920, while the sum is 49.

The square root of 689481454 is about 26257.9788635759. The cubic root of 689481454 is about 883.4341763436.

The spelling of 689481454 in words is "six hundred eighty-nine million, four hundred eighty-one thousand, four hundred fifty-four".