117020771 has 12 divisors (see below), whose sum is σ = 140821920. Its totient is φ = 96843600.

The previous prime is 117020749. The next prime is 117020773. The reversal of 117020771 is 177020711.

It is a de Polignac number, because none of the positive numbers 2^k-117020771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117020771.

It is not an unprimeable number, because it can be changed into a prime (117020773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39755 + ... + 42596.

It is an arithmetic number, because the mean of its divisors is an integer number (11735160).

Almost surely, 2^117020771 is an apocalyptic number.

117020771 is a deficient number, since it is larger than the sum of its proper divisors (23801149).

117020771 is an equidigital number, since it uses as much as digits as its factorization.

117020771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82394 (or 82387 counting only the distinct ones).

The product of its (nonzero) digits is 686, while the sum is 26.

The square root of 117020771 is about 10817.6139235970. The cubic root of 117020771 is about 489.1262660737.

The spelling of 117020771 in words is "one hundred seventeen million, twenty thousand, seven hundred seventy-one".