687340059 has 8 divisors (see below), whose sum is σ = 1047375360. Its totient is φ = 392765736.

The previous prime is 687340057. The next prime is 687340063. The reversal of 687340059 is 950043786.

It is a happy number.

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

It is not a de Polignac number, because 687340059 - 2¹ = 687340057 is a prime.

It is a super-4 number, since 4×687340059⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 687340059.

It is not an unprimeable number, because it can be changed into a prime (687340057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16365219 + ... + 16365260.

It is an arithmetic number, because the mean of its divisors is an integer number (130921920).

Almost surely, 2^687340059 is an apocalyptic number.

687340059 is a deficient number, since it is larger than the sum of its proper divisors (360035301).

687340059 is a wasteful number, since it uses less digits than its factorization.

687340059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32730489.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 687340059 is about 26217.1710716469. The cubic root of 687340059 is about 882.5186364090.

The spelling of 687340059 in words is "six hundred eighty-seven million, three hundred forty thousand, fifty-nine".