103403891 has 2 divisors, whose sum is σ = 103403892. Its totient is φ = 103403890.

The previous prime is 103403887. The next prime is 103403893. The reversal of 103403891 is 198304301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103403891 - 2² = 103403887 is a prime.

It is a super-3 number, since 3×103403891³ (a number of 25 digits) contains 333 as substring.

Together with 103403893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103403893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51701945 + 51701946.

It is an arithmetic number, because the mean of its divisors is an integer number (51701946).

Almost surely, 2^103403891 is an apocalyptic number.

103403891 is a deficient number, since it is larger than the sum of its proper divisors (1).

103403891 is an equidigital number, since it uses as much as digits as its factorization.

103403891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 103403891 is about 10168.7703779759. The cubic root of 103403891 is about 469.3667206636.

The spelling of 103403891 in words is "one hundred three million, four hundred three thousand, eight hundred ninety-one".