103823861 has 2 divisors, whose sum is σ = 103823862. Its totient is φ = 103823860.

The previous prime is 103823831. The next prime is 103823869. The reversal of 103823861 is 168328301.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82719025 + 21104836 = 9095^2 + 4594^2 .

It is a cyclic number.

It is not a de Polignac number, because 103823861 - 2²² = 99629557 is a prime.

It is a super-2 number, since 2×103823861² = 21558788225894642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103823869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51911930 + 51911931.

It is an arithmetic number, because the mean of its divisors is an integer number (51911931).

Almost surely, 2^103823861 is an apocalyptic number.

It is an amenable number.

103823861 is a deficient number, since it is larger than the sum of its proper divisors (1).

103823861 is an equidigital number, since it uses as much as digits as its factorization.

103823861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 103823861 is about 10189.3994425579. The cubic root of 103823861 is about 470.0012992268.

The spelling of 103823861 in words is "one hundred three million, eight hundred twenty-three thousand, eight hundred sixty-one".