686374334 has 4 divisors (see below), whose sum is σ = 1029561504. Its totient is φ = 343187166.

The previous prime is 686374313. The next prime is 686374343. The reversal of 686374334 is 433473686.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×686374334² = 942219452747887112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171593582 + ... + 171593585.

It is an arithmetic number, because the mean of its divisors is an integer number (257390376).

Almost surely, 2^686374334 is an apocalyptic number.

686374334 is a deficient number, since it is larger than the sum of its proper divisors (343187170).

686374334 is a wasteful number, since it uses less digits than its factorization.

686374334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343187169.

The product of its digits is 870912, while the sum is 44.

The square root of 686374334 is about 26198.7468020896. The cubic root of 686374334 is about 882.1051245612.

The spelling of 686374334 in words is "six hundred eighty-six million, three hundred seventy-four thousand, three hundred thirty-four".