6787131 has 32 divisors (see below), whose sum is σ = 10704960. Its totient is φ = 3784704.

The previous prime is 6787091. The next prime is 6787133. The reversal of 6787131 is 1317876.

6787131 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6787131 - 2¹⁰ = 6786107 is a prime.

It is a super-2 number, since 2×6787131² = 92130294422322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6787092 and 6787101.

It is not an unprimeable number, because it can be changed into a prime (6787133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19051 + ... + 19403.

It is an arithmetic number, because the mean of its divisors is an integer number (334530).

Almost surely, 2^6787131 is an apocalyptic number.

6787131 is a deficient number, since it is larger than the sum of its proper divisors (3917829).

6787131 is a wasteful number, since it uses less digits than its factorization.

6787131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415.

The product of its digits is 7056, while the sum is 33.

The square root of 6787131 is about 2605.2122754202. The cubic root of 6787131 is about 189.3340582887.

The spelling of 6787131 in words is "six million, seven hundred eighty-seven thousand, one hundred thirty-one".