841680687 has 4 divisors (see below), whose sum is σ = 1122240920. Its totient is φ = 561120456.

The previous prime is 841680683. The next prime is 841680701. The reversal of 841680687 is 786086148.

841680687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 841680687 - 2² = 841680683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (841680683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140280112 + ... + 140280117.

It is an arithmetic number, because the mean of its divisors is an integer number (280560230).

Almost surely, 2^841680687 is an apocalyptic number.

841680687 is a deficient number, since it is larger than the sum of its proper divisors (280560233).

841680687 is a wasteful number, since it uses less digits than its factorization.

841680687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280560232.

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 841680687 is about 29011.7336090072. The cubic root of 841680687 is about 944.1676599263.

It can be divided in two parts, 841 and 680687, that added together give a triangular number (681528 = T₁₁₆₇).

The spelling of 841680687 in words is "eight hundred forty-one million, six hundred eighty thousand, six hundred eighty-seven".