6491299 has 2 divisors, whose sum is σ = 6491300. Its totient is φ = 6491298.

The previous prime is 6491257. The next prime is 6491333. The reversal of 6491299 is 9921946.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6491299 is a prime.

It is a Chen prime.

6491299 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6497299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3245649 + 3245650.

It is an arithmetic number, because the mean of its divisors is an integer number (3245650).

Almost surely, 2^6491299 is an apocalyptic number.

6491299 is a deficient number, since it is larger than the sum of its proper divisors (1).

6491299 is an equidigital number, since it uses as much as digits as its factorization.

6491299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 40.

The square root of 6491299 is about 2547.8027788665. The cubic root of 6491299 is about 186.5422473753.

It can be divided in two parts, 649 and 1299, that multiplied together give a triangular number (843051 = T₁₂₉₈).

The spelling of 6491299 in words is "six million, four hundred ninety-one thousand, two hundred ninety-nine".