6467887 has 4 divisors (see below), whose sum is σ = 6559056. Its totient is φ = 6376720.

The previous prime is 6467869. The next prime is 6467917. The reversal of 6467887 is 7887646.

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 6467887 - 2¹¹ = 6465839 is a prime.

It is a Duffinian number.

6467887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6467827) 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, 45478 + ... + 45619.

It is an arithmetic number, because the mean of its divisors is an integer number (1639764).

Almost surely, 2^6467887 is an apocalyptic number.

6467887 is a deficient number, since it is larger than the sum of its proper divisors (91169).

6467887 is an equidigital number, since it uses as much as digits as its factorization.

6467887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91168.

The product of its digits is 451584, while the sum is 46.

The square root of 6467887 is about 2543.2040814689. The cubic root of 6467887 is about 186.3177115184.

The spelling of 6467887 in words is "six million, four hundred sixty-seven thousand, eight hundred eighty-seven".