6787090 has 16 divisors (see below), whose sum is σ = 12344472. Its totient is φ = 2686464.

The previous prime is 6787087. The next prime is 6787091. The reversal of 6787090 is 907876.

It can be written as a sum of positive squares in 4 ways, for example, as 4739329 + 2047761 = 2177^2 + 1431^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (6787091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2529 + ... + 4468.

Almost surely, 2^6787090 is an apocalyptic number.

6787090 is a deficient number, since it is larger than the sum of its proper divisors (5557382).

6787090 is a wasteful number, since it uses less digits than its factorization.

6787090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7101.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 6787090 is about 2605.2044065677. The cubic root of 6787090 is about 189.3336770421. Note that the first 3 decimals are identical.

The spelling of 6787090 in words is "six million, seven hundred eighty-seven thousand, ninety".