686414892 has 12 divisors (see below), whose sum is σ = 1601634776. Its totient is φ = 228804960.

The previous prime is 686414873. The next prime is 686414893. The reversal of 686414892 is 298414686.

686414892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (686414893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28600609 + ... + 28600632.

Almost surely, 2^686414892 is an apocalyptic number.

It is an amenable number.

686414892 is an abundant number, since it is smaller than the sum of its proper divisors (915219884).

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

686414892 is a wasteful number, since it uses less digits than its factorization.

686414892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57201248 (or 57201246 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 686414892 is about 26199.5208353130. The cubic root of 686414892 is about 882.1224988098.

The spelling of 686414892 in words is "six hundred eighty-six million, four hundred fourteen thousand, eight hundred ninety-two".