685338567 has 8 divisors (see below), whose sum is σ = 953514624. Its totient is φ = 437027448.

The previous prime is 685338551. The next prime is 685338583. The reversal of 685338567 is 765833586.

It is an interprime number because it is at equal distance from previous prime (685338551) and next prime (685338583).

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

It is not a de Polignac number, because 685338567 - 2⁴ = 685338551 is a prime.

It is a super-3 number, since 3×685338567³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685338517) 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, 4966153 + ... + 4966290.

It is an arithmetic number, because the mean of its divisors is an integer number (119189328).

Almost surely, 2^685338567 is an apocalyptic number.

685338567 is a deficient number, since it is larger than the sum of its proper divisors (268176057).

685338567 is a wasteful number, since it uses less digits than its factorization.

685338567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9932469.

The product of its digits is 3628800, while the sum is 51.

The square root of 685338567 is about 26178.9718476490. The cubic root of 685338567 is about 881.6611902530.

The spelling of 685338567 in words is "six hundred eighty-five million, three hundred thirty-eight thousand, five hundred sixty-seven".