685802423 has 16 divisors (see below), whose sum is σ = 739173600. Its totient is φ = 633984000.

The previous prime is 685802401. The next prime is 685802441. The reversal of 685802423 is 324208586.

It is a cyclic number.

It is not a de Polignac number, because 685802423 - 2¹² = 685798327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685801423) 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, 223403 + ... + 226451.

It is an arithmetic number, because the mean of its divisors is an integer number (46198350).

Almost surely, 2^685802423 is an apocalyptic number.

685802423 is a deficient number, since it is larger than the sum of its proper divisors (53371177).

685802423 is a wasteful number, since it uses less digits than its factorization.

685802423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298.

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 685802423 is about 26187.8296733425. The cubic root of 685802423 is about 881.8600562449.

The spelling of 685802423 in words is "six hundred eighty-five million, eight hundred two thousand, four hundred twenty-three".