685507359 has 8 divisors (see below), whose sum is σ = 914267520. Its totient is φ = 456876056.

The previous prime is 685507357. The next prime is 685507367. The reversal of 685507359 is 953705586.

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 685507359 - 2¹ = 685507357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685507357) 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, 19029 + ... + 41630.

It is an arithmetic number, because the mean of its divisors is an integer number (114283440).

Almost surely, 2^685507359 is an apocalyptic number.

685507359 is a deficient number, since it is larger than the sum of its proper divisors (228760161).

685507359 is a wasteful number, since it uses less digits than its factorization.

685507359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64429.

The product of its (nonzero) digits is 1134000, while the sum is 48.

The square root of 685507359 is about 26182.1954579825. The cubic root of 685507359 is about 881.7335657411.

The spelling of 685507359 in words is "six hundred eighty-five million, five hundred seven thousand, three hundred fifty-nine".