71103493 has 4 divisors (see below), whose sum is σ = 71125600. Its totient is φ = 71081388.

The previous prime is 71103457. The next prime is 71103499. The reversal of 71103493 is 39430117.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39430117 = 5779 ⋅6823.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71103493 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 (71103499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5193 + ... + 13006.

It is an arithmetic number, because the mean of its divisors is an integer number (17781400).

Almost surely, 2^71103493 is an apocalyptic number.

It is an amenable number.

71103493 is a deficient number, since it is larger than the sum of its proper divisors (22107).

71103493 is a wasteful number, since it uses less digits than its factorization.

71103493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22106.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 71103493 is about 8432.2887165941. The cubic root of 71103493 is about 414.2828724056.

The spelling of 71103493 in words is "seventy-one million, one hundred three thousand, four hundred ninety-three".