686362012 has 36 divisors (see below), whose sum is σ = 1479434544. Its totient is φ = 276850560.

The previous prime is 686362007. The next prime is 686362043. The reversal of 686362012 is 210263686.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99664 + ... + 106327.

It is an arithmetic number, because the mean of its divisors is an integer number (41095404).

Almost surely, 2^686362012 is an apocalyptic number.

It is an amenable number.

686362012 is an abundant number, since it is smaller than the sum of its proper divisors (793072532).

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

686362012 is a wasteful number, since it uses less digits than its factorization.

686362012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206026 (or 206017 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 686362012 is about 26198.5116371140. The cubic root of 686362012 is about 882.0998459235.

The spelling of 686362012 in words is "six hundred eighty-six million, three hundred sixty-two thousand, twelve".