685559095 has 8 divisors (see below), whose sum is σ = 885953376. Its totient is φ = 506258976.

The previous prime is 685559087. The next prime is 685559107. The reversal of 685559095 is 590955586.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 685559095 - 2³ = 685559087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5273467 + ... + 5273596.

It is an arithmetic number, because the mean of its divisors is an integer number (110744172).

Almost surely, 2^685559095 is an apocalyptic number.

685559095 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

685559095 is a deficient number, since it is larger than the sum of its proper divisors (200394281).

685559095 is a wasteful number, since it uses less digits than its factorization.

685559095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10547081.

The product of its (nonzero) digits is 2430000, while the sum is 52.

The square root of 685559095 is about 26183.1834389938. The cubic root of 685559095 is about 881.7557469862.

The spelling of 685559095 in words is "six hundred eighty-five million, five hundred fifty-nine thousand, ninety-five".