689712419 has 8 divisors (see below), whose sum is σ = 765167040. Its totient is φ = 616383400.

The previous prime is 689712409. The next prime is 689712437. The reversal of 689712419 is 914217986.

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

It is a cyclic number.

It is not a de Polignac number, because 689712419 - 2⁴ = 689712403 is a prime.

It is a super-2 number, since 2×689712419² = 951406441845663122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (689712409) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 530717 + ... + 532014.

It is an arithmetic number, because the mean of its divisors is an integer number (95645880).

Almost surely, 2^689712419 is an apocalyptic number.

689712419 is a deficient number, since it is larger than the sum of its proper divisors (75454621).

689712419 is a wasteful number, since it uses less digits than its factorization.

689712419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062801.

The product of its digits is 217728, while the sum is 47.

The square root of 689712419 is about 26262.3764918562. The cubic root of 689712419 is about 883.5328106598.

The spelling of 689712419 in words is "six hundred eighty-nine million, seven hundred twelve thousand, four hundred nineteen".