685462147 has 4 divisors (see below), whose sum is σ = 700046496. Its totient is φ = 670877800.

The previous prime is 685462121. The next prime is 685462153. The reversal of 685462147 is 741264586.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 685462147 - 2²³ = 677073539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685462447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7292104 + ... + 7292197.

It is an arithmetic number, because the mean of its divisors is an integer number (175011624).

Almost surely, 2^685462147 is an apocalyptic number.

685462147 is a deficient number, since it is larger than the sum of its proper divisors (14584349).

685462147 is a wasteful number, since it uses less digits than its factorization.

685462147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14584348.

The product of its digits is 322560, while the sum is 43.

The square root of 685462147 is about 26181.3320325762. The cubic root of 685462147 is about 881.7141806760.

The spelling of 685462147 in words is "six hundred eighty-five million, four hundred sixty-two thousand, one hundred forty-seven".