6867491 has 4 divisors (see below), whose sum is σ = 6875184. Its totient is φ = 6859800.

The previous prime is 6867479. The next prime is 6867529. The reversal of 6867491 is 1947686.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6867491 - 2¹⁴ = 6851107 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (6867451) 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, 2300 + ... + 4361.

It is an arithmetic number, because the mean of its divisors is an integer number (1718796).

Almost surely, 2^6867491 is an apocalyptic number.

6867491 is a deficient number, since it is larger than the sum of its proper divisors (7693).

6867491 is a wasteful number, since it uses less digits than its factorization.

6867491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7692.

The product of its digits is 72576, while the sum is 41.

The square root of 6867491 is about 2620.5898191056. The cubic root of 6867491 is about 190.0783702552.

The spelling of 6867491 in words is "six million, eight hundred sixty-seven thousand, four hundred ninety-one".