71117963 has 8 divisors (see below), whose sum is σ = 82936800. Its totient is φ = 60957960.

The previous prime is 71117939. The next prime is 71117983. The reversal of 71117963 is 36971117.

It is not a de Polignac number, because 71117963 - 2⁸ = 71117707 is a prime.

It is a super-2 number, since 2×71117963² = 10115529322538738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71117923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103328 + ... + 104013.

It is an arithmetic number, because the mean of its divisors is an integer number (10367100).

Almost surely, 2^71117963 is an apocalyptic number.

71117963 is a deficient number, since it is larger than the sum of its proper divisors (11818837).

71117963 is an equidigital number, since it uses as much as digits as its factorization.

71117963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207362 (or 207348 counting only the distinct ones).

The product of its digits is 7938, while the sum is 35.

The square root of 71117963 is about 8433.1466843640. The cubic root of 71117963 is about 414.3109735406.

The spelling of 71117963 in words is "seventy-one million, one hundred seventeen thousand, nine hundred sixty-three".