1117637943 has 8 divisors (see below), whose sum is σ = 1493376768. Its totient is φ = 743495544.

The previous prime is 1117637923. The next prime is 1117637951. The reversal of 1117637943 is 3497367111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1117637943 - 2¹⁴ = 1117621559 is a prime.

It is a super-2 number, since 2×1117637943² = 2498229143266542498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1117637895 and 1117637904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117637903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397471 + ... + 400272.

It is an arithmetic number, because the mean of its divisors is an integer number (186672096).

Almost surely, 2^1117637943 is an apocalyptic number.

1117637943 is a deficient number, since it is larger than the sum of its proper divisors (375738825).

1117637943 is an equidigital number, since it uses as much as digits as its factorization.

1117637943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798213.

The product of its digits is 95256, while the sum is 42.

The square root of 1117637943 is about 33431.0924589670. The cubic root of 1117637943 is about 1037.7682489806.

The spelling of 1117637943 in words is "one billion, one hundred seventeen million, six hundred thirty-seven thousand, nine hundred forty-three".