689946795 has 16 divisors (see below), whose sum is σ = 1226572320. Its totient is φ = 367971552.

The previous prime is 689946787. The next prime is 689946799. The reversal of 689946795 is 597649986.

It is a happy number.

689946795 is a `hidden beast` number, since 6 + 89 + 9 + 467 + 95 = 666.

689946795 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 689946795 - 2³ = 689946787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (689946799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2555224 + ... + 2555493.

It is an arithmetic number, because the mean of its divisors is an integer number (76660770).

Almost surely, 2^689946795 is an apocalyptic number.

689946795 is a deficient number, since it is larger than the sum of its proper divisors (536625525).

689946795 is a wasteful number, since it uses less digits than its factorization.

689946795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110731 (or 5110725 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The square root of 689946795 is about 26266.8383137370. The cubic root of 689946795 is about 883.6328791465.

The spelling of 689946795 in words is "six hundred eighty-nine million, nine hundred forty-six thousand, seven hundred ninety-five".