687074067 has 12 divisors (see below), whose sum is σ = 1044674280. Its totient is φ = 433941408.

The previous prime is 687074051. The next prime is 687074117. The reversal of 687074067 is 760470786.

It is not a de Polignac number, because 687074067 - 2⁴ = 687074051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (687074027) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2008818 + ... + 2009159.

It is an arithmetic number, because the mean of its divisors is an integer number (87056190).

Almost surely, 2^687074067 is an apocalyptic number.

687074067 is a deficient number, since it is larger than the sum of its proper divisors (357600213).

687074067 is a wasteful number, since it uses less digits than its factorization.

687074067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018002 (or 4017999 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 687074067 is about 26212.0977222351. The cubic root of 687074067 is about 882.4047804986.

The spelling of 687074067 in words is "six hundred eighty-seven million, seventy-four thousand, sixty-seven".