10081897 has 12 divisors (see below), whose sum is σ = 11923716. Its totient is φ = 8497440.

The previous prime is 10081873. The next prime is 10081933. The reversal of 10081897 is 79818001.

It can be written as a sum of positive squares in 2 ways, for example, as 5433561 + 4648336 = 2331^2 + 2156^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10081897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10081807) 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 in 11 ways as a sum of consecutive naturals, for example, 1303 + ... + 4675.

It is an arithmetic number, because the mean of its divisors is an integer number (993643).

Almost surely, 2^10081897 is an apocalyptic number.

It is an amenable number.

10081897 is a deficient number, since it is larger than the sum of its proper divisors (1841819).

10081897 is an equidigital number, since it uses as much as digits as its factorization.

10081897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448 (or 3441 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 10081897 is about 3175.2003086420. The cubic root of 10081897 is about 216.0300098336.

Adding to 10081897 its reverse (79818001), we get a palindrome (89899898).

The spelling of 10081897 in words is "ten million, eighty-one thousand, eight hundred ninety-seven".