689358214 has 4 divisors (see below), whose sum is σ = 1034037324. Its totient is φ = 344679106.

The previous prime is 689358193. The next prime is 689358223. The reversal of 689358214 is 412853986.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 412853986 = 2 ⋅206426993.

It is a congruent number.

It is an unprimeable number.

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, 172339552 + ... + 172339555.

It is an arithmetic number, because the mean of its divisors is an integer number (258509331).

Almost surely, 2^689358214 is an apocalyptic number.

689358214 is a deficient number, since it is larger than the sum of its proper divisors (344679110).

689358214 is a wasteful number, since it uses less digits than its factorization.

689358214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344679109.

The product of its digits is 414720, while the sum is 46.

The square root of 689358214 is about 26255.6320434302. The cubic root of 689358214 is about 883.3815373085.

The spelling of 689358214 in words is "six hundred eighty-nine million, three hundred fifty-eight thousand, two hundred fourteen".