685848493 has 32 divisors (see below), whose sum is σ = 808455168. Its totient is φ = 574944000.

The previous prime is 685848481. The next prime is 685848503. The reversal of 685848493 is 394848586.

It is a cyclic number.

It is not a de Polignac number, because 685848493 - 2¹³ = 685840301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685848473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3021246 + ... + 3021472.

It is an arithmetic number, because the mean of its divisors is an integer number (25264224).

Almost surely, 2^685848493 is an apocalyptic number.

It is an amenable number.

685848493 is a deficient number, since it is larger than the sum of its proper divisors (122606675).

685848493 is a wasteful number, since it uses less digits than its factorization.

685848493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513.

The product of its digits is 6635520, while the sum is 55.

The square root of 685848493 is about 26188.7092656358. The cubic root of 685848493 is about 881.8798026431.

It can be divided in two parts, 68584 and 8493, that added together give a palindrome (77077).

The spelling of 685848493 in words is "six hundred eighty-five million, eight hundred forty-eight thousand, four hundred ninety-three".