687986462 has 8 divisors (see below), whose sum is σ = 1032127392. Its totient is φ = 343944000.

The previous prime is 687986417. The next prime is 687986489. The reversal of 687986462 is 264689786.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 687986398 and 687986407.

It is a congruent number.

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, 3539 + ... + 37262.

It is an arithmetic number, because the mean of its divisors is an integer number (129015924).

Almost surely, 2^687986462 is an apocalyptic number.

687986462 is a deficient number, since it is larger than the sum of its proper divisors (344140930).

687986462 is a wasteful number, since it uses less digits than its factorization.

687986462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49234.

The product of its digits is 6967296, while the sum is 56.

The square root of 687986462 is about 26229.4960302328. The cubic root of 687986462 is about 882.7952020629.

The spelling of 687986462 in words is "six hundred eighty-seven million, nine hundred eighty-six thousand, four hundred sixty-two".