71103663 has 10 divisors (see below), whose sum is σ = 106216704. Its totient is φ = 47402388.

The previous prime is 71103661. The next prime is 71103667. The reversal of 71103663 is 36630117.

It is not a de Polignac number, because 71103663 - 2¹ = 71103661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71103661) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 438831 + ... + 438992.

Almost surely, 2^71103663 is an apocalyptic number.

71103663 is a deficient number, since it is larger than the sum of its proper divisors (35113041).

71103663 is an equidigital number, since it uses as much as digits as its factorization.

71103663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877835 (or 877826 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 71103663 is about 8432.2987968881. The cubic root of 71103663 is about 414.2832025724.

The spelling of 71103663 in words is "seventy-one million, one hundred three thousand, six hundred sixty-three".