71838103 has 4 divisors (see below), whose sum is σ = 72578800. Its totient is φ = 71097408.

The previous prime is 71838101. The next prime is 71838121. The reversal of 71838103 is 30183817.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71838103 - 2¹ = 71838101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71838101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370203 + ... + 370396.

It is an arithmetic number, because the mean of its divisors is an integer number (18144700).

Almost surely, 2^71838103 is an apocalyptic number.

71838103 is a deficient number, since it is larger than the sum of its proper divisors (740697).

71838103 is an equidigital number, since it uses as much as digits as its factorization.

71838103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740696.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 71838103 is about 8475.7361332217. The cubic root of 71838103 is about 415.7047164109.

The spelling of 71838103 in words is "seventy-one million, eight hundred thirty-eight thousand, one hundred three".