71103487 has 8 divisors (see below), whose sum is σ = 87512096. Its totient is φ = 56257632.

The previous prime is 71103457. The next prime is 71103499. The reversal of 71103487 is 78430117.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71103487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71103427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390588 + ... + 390769.

It is an arithmetic number, because the mean of its divisors is an integer number (10939012).

Almost surely, 2^71103487 is an apocalyptic number.

71103487 is a deficient number, since it is larger than the sum of its proper divisors (16408609).

71103487 is a wasteful number, since it uses less digits than its factorization.

71103487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781377.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 71103487 is about 8432.2883608188. The cubic root of 71103487 is about 414.2828607527.

The spelling of 71103487 in words is "seventy-one million, one hundred three thousand, four hundred eighty-seven".