117843457 has 12 divisors (see below), whose sum is σ = 121259908. Its totient is φ = 114508800.

The previous prime is 117843403. The next prime is 117843463. The reversal of 117843457 is 754348711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 71385601 + 46457856 = 8449^2 + 6816^2 .

It is not a de Polignac number, because 117843457 - 2¹⁵ = 117810689 is a prime.

It is a Duffinian number.

Its product of digits (94080) is a multiple of the sum of its prime factors (480).

It is not an unprimeable number, because it can be changed into a prime (117844457) 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, 488857 + ... + 489097.

Almost surely, 2^117843457 is an apocalyptic number.

It is an amenable number.

117843457 is a deficient number, since it is larger than the sum of its proper divisors (3416451).

117843457 is an frugal number, since it uses more digits than its factorization.

117843457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 409 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 117843457 is about 10855.5726242331. The cubic root of 117843457 is about 490.2698180782.

The spelling of 117843457 in words is "one hundred seventeen million, eight hundred forty-three thousand, four hundred fifty-seven".