1009646 has 8 divisors (see below), whose sum is σ = 1652184. Its totient is φ = 458920.

The previous prime is 1009643. The next prime is 1009649. The reversal of 1009646 is 6469001.

It is an interprime number because it is at equal distance from previous prime (1009643) and next prime (1009649).

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 (1009643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22925 + ... + 22968.

It is an arithmetic number, because the mean of its divisors is an integer number (206523).

2^1009646 is an apocalyptic number.

1009646 is a deficient number, since it is larger than the sum of its proper divisors (642538).

1009646 is a wasteful number, since it uses less digits than its factorization.

1009646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45906.

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

The square root of 1009646 is about 1004.8114250943. The cubic root of 1009646 is about 100.3205050013.

The spelling of 1009646 in words is "one million, nine thousand, six hundred forty-six".