6465491 has 16 divisors (see below), whose sum is σ = 7414560. Its totient is φ = 5598720.

The previous prime is 6465469. The next prime is 6465493. The reversal of 6465491 is 1945646.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6465491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6465493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11681 + ... + 12221.

It is an arithmetic number, because the mean of its divisors is an integer number (463410).

Almost surely, 2^6465491 is an apocalyptic number.

6465491 is a deficient number, since it is larger than the sum of its proper divisors (949069).

6465491 is a wasteful number, since it uses less digits than its factorization.

6465491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614.

The product of its digits is 25920, while the sum is 35.

The square root of 6465491 is about 2542.7329785095. The cubic root of 6465491 is about 186.2947018208.

The spelling of 6465491 in words is "six million, four hundred sixty-five thousand, four hundred ninety-one".