6479917 has 2 divisors, whose sum is σ = 6479918. Its totient is φ = 6479916.

The previous prime is 6479903. The next prime is 6479923. The reversal of 6479917 is 7199746.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5885476 + 594441 = 2426^2 + 771^2 .

It is a cyclic number.

It is not a de Polignac number, because 6479917 - 2¹⁵ = 6447149 is a prime.

6479917 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6479617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3239958 + 3239959.

It is an arithmetic number, because the mean of its divisors is an integer number (3239959).

Almost surely, 2^6479917 is an apocalyptic number.

It is an amenable number.

6479917 is a deficient number, since it is larger than the sum of its proper divisors (1).

6479917 is an equidigital number, since it uses as much as digits as its factorization.

6479917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 43.

The square root of 6479917 is about 2545.5681094797. The cubic root of 6479917 is about 186.4331543653.

It can be divided in two parts, 6479 and 917, that added together give a square (7396 = 86²).

The spelling of 6479917 in words is "six million, four hundred seventy-nine thousand, nine hundred seventeen".