106811897 has 2 divisors, whose sum is σ = 106811898. Its totient is φ = 106811896.

The previous prime is 106811893. The next prime is 106811911. The reversal of 106811897 is 798118601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104427961 + 2383936 = 10219^2 + 1544^2 .

It is a cyclic number.

It is not a de Polignac number, because 106811897 - 2² = 106811893 is a prime.

It is a super-2 number, since 2×106811897² = 22817562681477218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106811891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53405948 + 53405949.

It is an arithmetic number, because the mean of its divisors is an integer number (53405949).

Almost surely, 2^106811897 is an apocalyptic number.

It is an amenable number.

106811897 is a deficient number, since it is larger than the sum of its proper divisors (1).

106811897 is an equidigital number, since it uses as much as digits as its factorization.

106811897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 41.

The square root of 106811897 is about 10334.9841315795. The cubic root of 106811897 is about 474.4675799884.

The spelling of 106811897 in words is "one hundred six million, eight hundred eleven thousand, eight hundred ninety-seven".