10781017 has 6 divisors (see below), whose sum is σ = 11674302. Its totient is φ = 9951552.

The previous prime is 10780981. The next prime is 10781021. The reversal of 10781017 is 71018701.

It can be written as a sum of positive squares in 3 ways, for example, as 1115136 + 9665881 = 1056^2 + 3109^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10781017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10780982 and 10781000.

It is not an unprimeable number, because it can be changed into a prime (10781027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31728 + ... + 32065.

It is an arithmetic number, because the mean of its divisors is an integer number (1945717).

Almost surely, 2^10781017 is an apocalyptic number.

It is an amenable number.

10781017 is a deficient number, since it is larger than the sum of its proper divisors (893285).

10781017 is an equidigital number, since it uses as much as digits as its factorization.

10781017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63819 (or 63806 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 25.

The square root of 10781017 is about 3283.4459033156. The cubic root of 10781017 is about 220.9123066148.

Adding to 10781017 its reverse (71018701), we get a palindrome (81799718).

The spelling of 10781017 in words is "ten million, seven hundred eighty-one thousand, seventeen".