689382935 has 4 divisors (see below), whose sum is σ = 827259528. Its totient is φ = 551506344.

The previous prime is 689382913. The next prime is 689382943. The reversal of 689382935 is 539283986.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 539283986 = 2 ⋅269641993.

It is a cyclic number.

It is not a de Polignac number, because 689382935 - 2¹⁶ = 689317399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68938289 + ... + 68938298.

It is an arithmetic number, because the mean of its divisors is an integer number (206814882).

Almost surely, 2^689382935 is an apocalyptic number.

689382935 is a deficient number, since it is larger than the sum of its proper divisors (137876593).

689382935 is a wasteful number, since it uses less digits than its factorization.

689382935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137876592.

The product of its digits is 2799360, while the sum is 53.

The square root of 689382935 is about 26256.1028143935. The cubic root of 689382935 is about 883.3920967987.

The spelling of 689382935 in words is "six hundred eighty-nine million, three hundred eighty-two thousand, nine hundred thirty-five".