686374346 has 16 divisors (see below), whose sum is σ = 1208443776. Its totient is φ = 286209936.

The previous prime is 686374343. The next prime is 686374361. The reversal of 686374346 is 643473686.

It is a super-2 number, since 2×686374346² = 942219485693855432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 686374346.

It is not an unprimeable number, because it can be changed into a prime (686374343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662006 + ... + 663041.

It is an arithmetic number, because the mean of its divisors is an integer number (75527736).

Almost surely, 2^686374346 is an apocalyptic number.

686374346 is a deficient number, since it is larger than the sum of its proper divisors (522069430).

686374346 is a wasteful number, since it uses less digits than its factorization.

686374346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325093.

The product of its digits is 1741824, while the sum is 47.

The square root of 686374346 is about 26198.7470311082. The cubic root of 686374346 is about 882.1051297019.

The spelling of 686374346 in words is "six hundred eighty-six million, three hundred seventy-four thousand, three hundred forty-six".