117488747 has 2 divisors, whose sum is σ = 117488748. Its totient is φ = 117488746.

The previous prime is 117488743. The next prime is 117488783. The reversal of 117488747 is 747884711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117488747 - 2² = 117488743 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117488743) 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, 58744373 + 58744374.

It is an arithmetic number, because the mean of its divisors is an integer number (58744374).

Almost surely, 2^117488747 is an apocalyptic number.

117488747 is a deficient number, since it is larger than the sum of its proper divisors (1).

117488747 is an equidigital number, since it uses as much as digits as its factorization.

117488747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 351232, while the sum is 47.

The square root of 117488747 is about 10839.2226197269. Note that the first 3 decimals coincide. The cubic root of 117488747 is about 489.7774179969. Note that the first 3 decimals are identical.

The spelling of 117488747 in words is "one hundred seventeen million, four hundred eighty-eight thousand, seven hundred forty-seven".