686673334 has 8 divisors (see below), whose sum is σ = 1030385880. Its totient is φ = 343211376.

The previous prime is 686673331. The next prime is 686673389. The reversal of 686673334 is 433376686.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686673331) 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, 55639 + ... + 66850.

It is an arithmetic number, because the mean of its divisors is an integer number (128798235).

Almost surely, 2^686673334 is an apocalyptic number.

686673334 is a deficient number, since it is larger than the sum of its proper divisors (343712546).

686673334 is a wasteful number, since it uses less digits than its factorization.

686673334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125294.

The product of its digits is 1306368, while the sum is 46.

The square root of 686673334 is about 26204.4525605860. The cubic root of 686673334 is about 882.2331942019.

It can be divided in two parts, 6866 and 73334, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 686673334 in words is "six hundred eighty-six million, six hundred seventy-three thousand, three hundred thirty-four".