686627048 has 16 divisors (see below), whose sum is σ = 1287900000. Its totient is φ = 343187056.

The previous prime is 686627033. The next prime is 686627063. The reversal of 686627048 is 840726686.

It is an interprime number because it is at equal distance from previous prime (686627033) and next prime (686627063).

It is a junction number, because it is equal to n+sod(n) for n = 686626993 and 686627011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9683 + ... + 38301.

It is an arithmetic number, because the mean of its divisors is an integer number (80493750).

Almost surely, 2^686627048 is an apocalyptic number.

It is an amenable number.

686627048 is a deficient number, since it is larger than the sum of its proper divisors (601272952).

686627048 is a wasteful number, since it uses less digits than its factorization.

686627048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31624 (or 31620 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 686627048 is about 26203.5693751825. The cubic root of 686627048 is about 882.2133711113.

The spelling of 686627048 in words is "six hundred eighty-six million, six hundred twenty-seven thousand, forty-eight".