6490705 has 16 divisors (see below), whose sum is σ = 8530704. Its totient is φ = 4711680.

The previous prime is 6490699. The next prime is 6490709. The reversal of 6490705 is 5070946.

6490705 = T₄₁₄ + T₄₁₅ + ... + T₄₇₈.

It can be written as a sum of positive squares in 8 ways, for example, as 3814209 + 2676496 = 1953^2 + 1636^2 .

It is not a de Polignac number, because 6490705 - 2⁹ = 6490193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6490709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3147 + ... + 4783.

It is an arithmetic number, because the mean of its divisors is an integer number (533169).

Almost surely, 2^6490705 is an apocalyptic number.

6490705 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6490705 is a deficient number, since it is larger than the sum of its proper divisors (2039999).

6490705 is a wasteful number, since it uses less digits than its factorization.

6490705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 6490705 is about 2547.6862051673. The cubic root of 6490705 is about 186.5365572212.

The spelling of 6490705 in words is "six million, four hundred ninety thousand, seven hundred five".