687369934 has 8 divisors (see below), whose sum is σ = 1032616728. Its totient is φ = 343164360.

The previous prime is 687369869. The next prime is 687369941. The reversal of 687369934 is 439963786.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258652 + ... + 261295.

It is an arithmetic number, because the mean of its divisors is an integer number (129077091).

Almost surely, 2^687369934 is an apocalyptic number.

687369934 is a deficient number, since it is larger than the sum of its proper divisors (345246794).

687369934 is a wasteful number, since it uses less digits than its factorization.

687369934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520610.

The product of its digits is 5878656, while the sum is 55.

The square root of 687369934 is about 26217.7408256318. The cubic root of 687369934 is about 882.5314223471.

The spelling of 687369934 in words is "six hundred eighty-seven million, three hundred sixty-nine thousand, nine hundred thirty-four".