1117683421 has 2 divisors, whose sum is σ = 1117683422. Its totient is φ = 1117683420.

The previous prime is 1117683353. The next prime is 1117683443. The reversal of 1117683421 is 1243867111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 564775225 + 552908196 = 23765^2 + 23514^2 .

It is a cyclic number.

It is not a de Polignac number, because 1117683421 - 2¹⁷ = 1117552349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117683221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558841710 + 558841711.

It is an arithmetic number, because the mean of its divisors is an integer number (558841711).

Almost surely, 2^1117683421 is an apocalyptic number.

It is an amenable number.

1117683421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117683421 is an equidigital number, since it uses as much as digits as its factorization.

1117683421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 34.

The square root of 1117683421 is about 33431.7726272479. The cubic root of 1117683421 is about 1037.7823247925.

The spelling of 1117683421 in words is "one billion, one hundred seventeen million, six hundred eighty-three thousand, four hundred twenty-one".