117456487 has 2 divisors, whose sum is σ = 117456488. Its totient is φ = 117456486.

The previous prime is 117456473. The next prime is 117456491. The reversal of 117456487 is 784654711.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117456487 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117456457) 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 as a sum of consecutive naturals, namely, 58728243 + 58728244.

It is an arithmetic number, because the mean of its divisors is an integer number (58728244).

Almost surely, 2^117456487 is an apocalyptic number.

117456487 is a deficient number, since it is larger than the sum of its proper divisors (1).

117456487 is an equidigital number, since it uses as much as digits as its factorization.

117456487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 43.

The square root of 117456487 is about 10837.7344034627. The cubic root of 117456487 is about 489.7325862825.

The spelling of 117456487 in words is "one hundred seventeen million, four hundred fifty-six thousand, four hundred eighty-seven".