686834674 has 8 divisors (see below), whose sum is σ = 1037075328. Its totient is φ = 341142900.

The previous prime is 686834653. The next prime is 686834677. The reversal of 686834674 is 476438686.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (686834677) 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, 1136842 + ... + 1137445.

It is an arithmetic number, because the mean of its divisors is an integer number (129634416).

Almost surely, 2^686834674 is an apocalyptic number.

686834674 is a deficient number, since it is larger than the sum of its proper divisors (350240654).

686834674 is a wasteful number, since it uses less digits than its factorization.

686834674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274440.

The product of its digits is 4644864, while the sum is 52.

The square root of 686834674 is about 26207.5308642382. The cubic root of 686834674 is about 882.3022849665.

The spelling of 686834674 in words is "six hundred eighty-six million, eight hundred thirty-four thousand, six hundred seventy-four".