6489090 has 24 divisors (see below), whose sum is σ = 16871868. Its totient is φ = 1730400.

The previous prime is 6489083. The next prime is 6489101. The reversal of 6489090 is 909846.

6489090 is a `hidden beast` number, since 648 + 9 + 0 + 9 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6095961 + 393129 = 2469^2 + 627^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35961 + ... + 36140.

Almost surely, 2^6489090 is an apocalyptic number.

6489090 is an abundant number, since it is smaller than the sum of its proper divisors (10382778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6489090 is a wasteful number, since it uses less digits than its factorization.

6489090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72114 (or 72111 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 6489090 is about 2547.3692311873. The cubic root of 6489090 is about 186.5210847607.

It can be divided in two parts, 64890 and 90, that added together give a triangular number (64980 = T₃₆₀).

The spelling of 6489090 in words is "six million, four hundred eighty-nine thousand, ninety".