6840536087 has 16 divisors (see below), whose sum is σ = 8709921792. Its totient is φ = 5216874720.

The previous prime is 6840536071. The next prime is 6840536111. The reversal of 6840536087 is 7806350486.

It is a cyclic number.

It is not a de Polignac number, because 6840536087 - 2⁴ = 6840536071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6840536887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 941468 + ... + 948705.

It is an arithmetic number, because the mean of its divisors is an integer number (544370112).

Almost surely, 2^6840536087 is an apocalyptic number.

6840536087 is a deficient number, since it is larger than the sum of its proper divisors (1869385705).

6840536087 is a wasteful number, since it uses less digits than its factorization.

6840536087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890238.

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 6840536087 is about 82707.5334355946. The cubic root of 6840536087 is about 1898.2935821196.

The spelling of 6840536087 in words is "six billion, eight hundred forty million, five hundred thirty-six thousand, eighty-seven".