685418412 has 24 divisors (see below), whose sum is σ = 1827782656. Its totient is φ = 195833808.

The previous prime is 685418411. The next prime is 685418417. The reversal of 685418412 is 214814586.

It is not an unprimeable number, because it can be changed into a prime (685418411) 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, 4079788 + ... + 4079955.

Almost surely, 2^685418412 is an apocalyptic number.

It is an amenable number.

685418412 is an abundant number, since it is smaller than the sum of its proper divisors (1142364244).

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

685418412 is a wasteful number, since it uses less digits than its factorization.

685418412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8159757 (or 8159755 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 685418412 is about 26180.4967867304. The cubic root of 685418412 is about 881.6954280772.

The spelling of 685418412 in words is "six hundred eighty-five million, four hundred eighteen thousand, four hundred twelve".