6477965 has 8 divisors (see below), whose sum is σ = 8371608. Its totient is φ = 4783680.

The previous prime is 6477949. The next prime is 6477967. The reversal of 6477965 is 5697746.

It can be written as a sum of positive squares in 4 ways, for example, as 137641 + 6340324 = 371^2 + 2518^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6477965 - 2⁴ = 6477949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6477967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49766 + ... + 49895.

It is an arithmetic number, because the mean of its divisors is an integer number (1046451).

Almost surely, 2^6477965 is an apocalyptic number.

6477965 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6477965 is a deficient number, since it is larger than the sum of its proper divisors (1893643).

6477965 is a wasteful number, since it uses less digits than its factorization.

6477965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99679.

The product of its digits is 317520, while the sum is 44.

The square root of 6477965 is about 2545.1846691350. The cubic root of 6477965 is about 186.4144322085.

The spelling of 6477965 in words is "six million, four hundred seventy-seven thousand, nine hundred sixty-five".