686452043 has 8 divisors (see below), whose sum is σ = 732956928. Its totient is φ = 641335464.

The previous prime is 686452031. The next prime is 686452073. The reversal of 686452043 is 340254686.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-686452043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 686451988 and 686452006.

It is not an unprimeable number, because it can be changed into a prime (686452073) 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, 346055 + ... + 348032.

It is an arithmetic number, because the mean of its divisors is an integer number (91619616).

Almost surely, 2^686452043 is an apocalyptic number.

686452043 is a deficient number, since it is larger than the sum of its proper divisors (46504885).

686452043 is a wasteful number, since it uses less digits than its factorization.

686452043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694153.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 686452043 is about 26200.2298272362. The cubic root of 686452043 is about 882.1384129662.

The spelling of 686452043 in words is "six hundred eighty-six million, four hundred fifty-two thousand, forty-three".