117408649 has 2 divisors, whose sum is σ = 117408650. Its totient is φ = 117408648.

The previous prime is 117408637. The next prime is 117408661. The reversal of 117408649 is 946804711.

It is a balanced prime because it is at equal distance from previous prime (117408637) and next prime (117408661).

It can be written as a sum of positive squares in only one way, i.e., 87235600 + 30173049 = 9340^2 + 5493^2 .

It is an emirp because it is prime and its reverse (946804711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117408649 - 2⁷ = 117408521 is a prime.

It is not a weakly prime, because it can be changed into another prime (117408689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58704324 + 58704325.

It is an arithmetic number, because the mean of its divisors is an integer number (58704325).

Almost surely, 2^117408649 is an apocalyptic number.

It is an amenable number.

117408649 is a deficient number, since it is larger than the sum of its proper divisors (1).

117408649 is an equidigital number, since it uses as much as digits as its factorization.

117408649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 117408649 is about 10835.5271676093. The cubic root of 117408649 is about 489.6660907108. Note that the first 3 decimals are identical.

The spelling of 117408649 in words is "one hundred seventeen million, four hundred eight thousand, six hundred forty-nine".