6479591 has 4 divisors (see below), whose sum is σ = 6498000. Its totient is φ = 6461184.

The previous prime is 6479587. The next prime is 6479593. The reversal of 6479591 is 1959746.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1959746 = 2 ⋅979873.

It is a cyclic number.

It is not a de Polignac number, because 6479591 - 2² = 6479587 is a prime.

It is a d-powerful number, because it can be written as 6⁸ + 4³ + 7⁵ + 9 + 5³ + 9⁷ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6479593) 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, 8666 + ... + 9383.

It is an arithmetic number, because the mean of its divisors is an integer number (1624500).

Almost surely, 2^6479591 is an apocalyptic number.

6479591 is a deficient number, since it is larger than the sum of its proper divisors (18409).

6479591 is a wasteful number, since it uses less digits than its factorization.

6479591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18408.

The product of its digits is 68040, while the sum is 41.

The square root of 6479591 is about 2545.5040758168. The cubic root of 6479591 is about 186.4300278732.

The spelling of 6479591 in words is "six million, four hundred seventy-nine thousand, five hundred ninety-one".