6477949 has 2 divisors, whose sum is σ = 6477950. Its totient is φ = 6477948.

The previous prime is 6477931. The next prime is 6477967. The reversal of 6477949 is 9497746.

It is a balanced prime because it is at equal distance from previous prime (6477931) and next prime (6477967).

It can be written as a sum of positive squares in only one way, i.e., 5904900 + 573049 = 2430^2 + 757^2 .

It is a cyclic number.

It is not a de Polignac number, because 6477949 - 2¹¹ = 6475901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6477899 and 6477908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6477929) 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 as a sum of consecutive naturals, namely, 3238974 + 3238975.

It is an arithmetic number, because the mean of its divisors is an integer number (3238975).

Almost surely, 2^6477949 is an apocalyptic number.

It is an amenable number.

6477949 is a deficient number, since it is larger than the sum of its proper divisors (1).

6477949 is an equidigital number, since it uses as much as digits as its factorization.

6477949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 46.

The square root of 6477949 is about 2545.1815259427. The cubic root of 6477949 is about 186.4142787327.

The spelling of 6477949 in words is "six million, four hundred seventy-seven thousand, nine hundred forty-nine".