689743326 has 16 divisors (see below), whose sum is σ = 1382864400. Its totient is φ = 229351488.

The previous prime is 689743321. The next prime is 689743331. The reversal of 689743326 is 623347986.

It is an interprime number because it is at equal distance from previous prime (689743321) and next prime (689743331).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689743321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138081 + ... + 142988.

It is an arithmetic number, because the mean of its divisors is an integer number (86429025).

Almost surely, 2^689743326 is an apocalyptic number.

689743326 is an abundant number, since it is smaller than the sum of its proper divisors (693121074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689743326 is a wasteful number, since it uses less digits than its factorization.

689743326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281483.

The product of its digits is 1306368, while the sum is 48.

The square root of 689743326 is about 26262.9649125913. The cubic root of 689743326 is about 883.5460079190.

The spelling of 689743326 in words is "six hundred eighty-nine million, seven hundred forty-three thousand, three hundred twenty-six".