10780506 has 32 divisors (see below), whose sum is σ = 26136000. Its totient is φ = 3266640.

The previous prime is 10780493. The next prime is 10780513. The reversal of 10780506 is 60508701.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10780506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8481 + ... + 9668.

It is an arithmetic number, because the mean of its divisors is an integer number (816750).

Almost surely, 2^10780506 is an apocalyptic number.

10780506 is an abundant number, since it is smaller than the sum of its proper divisors (15355494).

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

10780506 is a wasteful number, since it uses less digits than its factorization.

10780506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18171 (or 18165 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 10780506 is about 3283.3680878025. The cubic root of 10780506 is about 220.9088162832.

The spelling of 10780506 in words is "ten million, seven hundred eighty thousand, five hundred six".