10782009 has 36 divisors (see below), whose sum is σ = 18922176. Its totient is φ = 5887728.

The previous prime is 10781993. The next prime is 10782011. The reversal of 10782009 is 90028701.

It is not a de Polignac number, because 10782009 - 2⁴ = 10781993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10782049) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9612 + ... + 10674.

It is an arithmetic number, because the mean of its divisors is an integer number (525616).

Almost surely, 2^10782009 is an apocalyptic number.

It is an amenable number.

10782009 is a deficient number, since it is larger than the sum of its proper divisors (8140167).

10782009 is a wasteful number, since it uses less digits than its factorization.

10782009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 10782009 is about 3283.5969606515. The cubic root of 10782009 is about 220.9190820512.

The spelling of 10782009 in words is "ten million, seven hundred eighty-two thousand, nine".