686654002 has 16 divisors (see below), whose sum is σ = 1041828480. Its totient is φ = 339392592.

The previous prime is 686653991. The next prime is 686654009. The reversal of 686654002 is 200456686.

It is not an unprimeable number, because it can be changed into a prime (686654009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97533 + ... + 104335.

It is an arithmetic number, because the mean of its divisors is an integer number (65114280).

Almost surely, 2^686654002 is an apocalyptic number.

686654002 is a deficient number, since it is larger than the sum of its proper divisors (355174478).

686654002 is a wasteful number, since it uses less digits than its factorization.

686654002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 686654002 is about 26204.0836893794. The cubic root of 686654002 is about 882.2249149172.

The spelling of 686654002 in words is "six hundred eighty-six million, six hundred fifty-four thousand, two".