6505487 has 4 divisors (see below), whose sum is σ = 6513936. Its totient is φ = 6497040.

The previous prime is 6505469. The next prime is 6505501. The reversal of 6505487 is 7845056.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6505487 is a prime.

It is a super-2 number, since 2×6505487² = 84642722214338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6501487) 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, 2939 + ... + 4652.

It is an arithmetic number, because the mean of its divisors is an integer number (1628484).

Almost surely, 2^6505487 is an apocalyptic number.

6505487 is a deficient number, since it is larger than the sum of its proper divisors (8449).

6505487 is an equidigital number, since it uses as much as digits as its factorization.

6505487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8448.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 6505487 is about 2550.5856190295. The cubic root of 6505487 is about 186.6780566321.

The spelling of 6505487 in words is "six million, five hundred five thousand, four hundred eighty-seven".