689132419 has 2 divisors, whose sum is σ = 689132420. Its totient is φ = 689132418.

The previous prime is 689132399. The next prime is 689132467. The reversal of 689132419 is 914231986.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 689132419 - 2¹⁹ = 688608131 is a prime.

It is a super-2 number, since 2×689132419² = 949806981833583122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (689138419) 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 as a sum of consecutive naturals, namely, 344566209 + 344566210.

It is an arithmetic number, because the mean of its divisors is an integer number (344566210).

Almost surely, 2^689132419 is an apocalyptic number.

689132419 is a deficient number, since it is larger than the sum of its proper divisors (1).

689132419 is an equidigital number, since it uses as much as digits as its factorization.

689132419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 43.

The square root of 689132419 is about 26251.3317566938. The cubic root of 689132419 is about 883.2850780649.

The spelling of 689132419 in words is "six hundred eighty-nine million, one hundred thirty-two thousand, four hundred nineteen".