6390499 has 2 divisors, whose sum is σ = 6390500. Its totient is φ = 6390498.

The previous prime is 6390463. The next prime is 6390533. The reversal of 6390499 is 9940936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6390499 - 2¹³ = 6382307 is a prime.

It is not a weakly prime, because it can be changed into another prime (6390409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3195249 + 3195250.

It is an arithmetic number, because the mean of its divisors is an integer number (3195250).

Almost surely, 2^6390499 is an apocalyptic number.

6390499 is a deficient number, since it is larger than the sum of its proper divisors (1).

6390499 is an equidigital number, since it uses as much as digits as its factorization.

6390499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 6390499 is about 2527.9436307007. The cubic root of 6390499 is about 185.5716333945.

It can be divided in two parts, 6390 and 499, that added together give a square (6889 = 83²).

The spelling of 6390499 in words is "six million, three hundred ninety thousand, four hundred ninety-nine".