687042286 has 32 divisors (see below), whose sum is σ = 1205591040. Its totient is φ = 287547936.

The previous prime is 687042281. The next prime is 687042341. The reversal of 687042286 is 682240786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687042281) 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 15 ways as a sum of consecutive naturals, for example, 166395 + ... + 170473.

It is an arithmetic number, because the mean of its divisors is an integer number (37674720).

Almost surely, 2^687042286 is an apocalyptic number.

687042286 is a deficient number, since it is larger than the sum of its proper divisors (518548754).

687042286 is a wasteful number, since it uses less digits than its factorization.

687042286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368.

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 687042286 is about 26211.4914875136. The cubic root of 687042286 is about 882.3911749113.

The spelling of 687042286 in words is "six hundred eighty-seven million, forty-two thousand, two hundred eighty-six".