685007862 has 96 divisors (see below), whose sum is σ = 1768010496. Its totient is φ = 173067840.

The previous prime is 685007831. The next prime is 685007867. The reversal of 685007862 is 268700586.

It is a super-2 number, since 2×685007862² = 938471542003622088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685007867) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186213 + ... + 189855.

It is an arithmetic number, because the mean of its divisors is an integer number (18416776).

Almost surely, 2^685007862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 685007862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884005248).

685007862 is an abundant number, since it is smaller than the sum of its proper divisors (1083002634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685007862 is a wasteful number, since it uses less digits than its factorization.

685007862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714 (or 3703 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 685007862 is about 26172.6548519633. The cubic root of 685007862 is about 881.5193544321.

The spelling of 685007862 in words is "six hundred eighty-five million, seven thousand, eight hundred sixty-two".