1649006 has 8 divisors (see below), whose sum is σ = 2480544. Its totient is φ = 822160.

The previous prime is 1649003. The next prime is 1649023. The reversal of 1649006 is 6009461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95 + ... + 1818.

It is an arithmetic number, because the mean of its divisors is an integer number (310068).

2^1649006 is an apocalyptic number.

1649006 is a deficient number, since it is larger than the sum of its proper divisors (831538).

1649006 is a wasteful number, since it uses less digits than its factorization.

1649006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1649006 is about 1284.1362856021. The cubic root of 1649006 is about 118.1428414771.

The spelling of 1649006 in words is "one million, six hundred forty-nine thousand, six".