71053863 has 16 divisors (see below), whose sum is σ = 105592320. Its totient is φ = 42235776.

The previous prime is 71053847. The next prime is 71053883. The reversal of 71053863 is 36835017.

It is a happy number.

It is not a de Polignac number, because 71053863 - 2⁴ = 71053847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71053883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35695 + ... + 37632.

It is an arithmetic number, because the mean of its divisors is an integer number (6599520).

Almost surely, 2^71053863 is an apocalyptic number.

71053863 is a deficient number, since it is larger than the sum of its proper divisors (34538457).

71053863 is a wasteful number, since it uses less digits than its factorization.

71053863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73366.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 71053863 is about 8429.3453482462. The cubic root of 71053863 is about 414.1864606179.

The spelling of 71053863 in words is "seventy-one million, fifty-three thousand, eight hundred sixty-three".