6791887 has 4 divisors (see below), whose sum is σ = 7026120. Its totient is φ = 6557656.

The previous prime is 6791881. The next prime is 6791933. The reversal of 6791887 is 7881976.

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

It is a cyclic number.

It is not a de Polignac number, because 6791887 - 2¹⁵ = 6759119 is a prime.

It is a super-2 number, since 2×6791887² = 92259458041538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6791881) 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, 117073 + ... + 117130.

It is an arithmetic number, because the mean of its divisors is an integer number (1756530).

Almost surely, 2^6791887 is an apocalyptic number.

6791887 is a deficient number, since it is larger than the sum of its proper divisors (234233).

6791887 is a wasteful number, since it uses less digits than its factorization.

6791887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234232.

The product of its digits is 169344, while the sum is 46.

The square root of 6791887 is about 2606.1249010744. The cubic root of 6791887 is about 189.3782724803.

It can be divided in two parts, 679188 and 7, that added together give a triangular number (679195 = T₁₁₆₅).

The spelling of 6791887 in words is "six million, seven hundred ninety-one thousand, eight hundred eighty-seven".