10851817 has 2 divisors, whose sum is σ = 10851818. Its totient is φ = 10851816.

The previous prime is 10851809. The next prime is 10851847. The reversal of 10851817 is 71815801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9461776 + 1390041 = 3076^2 + 1179^2 .

It is a cyclic number.

It is not a de Polignac number, because 10851817 - 2³ = 10851809 is a prime.

It is not a weakly prime, because it can be changed into another prime (10851847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5425908 + 5425909.

It is an arithmetic number, because the mean of its divisors is an integer number (5425909).

Almost surely, 2^10851817 is an apocalyptic number.

It is an amenable number.

10851817 is a deficient number, since it is larger than the sum of its proper divisors (1).

10851817 is an equidigital number, since it uses as much as digits as its factorization.

10851817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 31.

The square root of 10851817 is about 3294.2096168884. The cubic root of 10851817 is about 221.3948361668.

The spelling of 10851817 in words is "ten million, eight hundred fifty-one thousand, eight hundred seventeen".