685068415 has 8 divisors (see below), whose sum is σ = 822773808. Its totient is φ = 547593600.

The previous prime is 685068413. The next prime is 685068437. The reversal of 685068415 is 514860586.

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

It is not a de Polignac number, because 685068415 - 2¹ = 685068413 is a prime.

It is a super-2 number, since 2×685068415² = 938637466461224450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685068413) 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, 51037 + ... + 63046.

It is an arithmetic number, because the mean of its divisors is an integer number (102846726).

Almost surely, 2^685068415 is an apocalyptic number.

685068415 is a deficient number, since it is larger than the sum of its proper divisors (137705393).

685068415 is a wasteful number, since it uses less digits than its factorization.

685068415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115289.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 685068415 is about 26173.8116253632. The cubic root of 685068415 is about 881.5453283767.

The spelling of 685068415 in words is "six hundred eighty-five million, sixty-eight thousand, four hundred fifteen".