689769419 has 4 divisors (see below), whose sum is σ = 689925600. Its totient is φ = 689613240.

The previous prime is 689769403. The next prime is 689769439. The reversal of 689769419 is 914967986.

689769419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 914967986 = 2 ⋅457483993.

It is a cyclic number.

It is not a de Polignac number, because 689769419 - 2⁴ = 689769403 is a prime.

It is a super-2 number, since 2×689769419² = 951563702775195122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689769439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71267 + ... + 80364.

It is an arithmetic number, because the mean of its divisors is an integer number (172481400).

Almost surely, 2^689769419 is an apocalyptic number.

689769419 is a deficient number, since it is larger than the sum of its proper divisors (156181).

689769419 is a wasteful number, since it uses less digits than its factorization.

689769419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156180.

The product of its digits is 5878656, while the sum is 59.

The square root of 689769419 is about 26263.4616720645. The cubic root of 689769419 is about 883.5571492979.

The spelling of 689769419 in words is "six hundred eighty-nine million, seven hundred sixty-nine thousand, four hundred nineteen".