117649039 has 2 divisors, whose sum is σ = 117649040. Its totient is φ = 117649038.

The previous prime is 117649031. The next prime is 117649057. The reversal of 117649039 is 930946711.

It is a weak prime.

It is an emirp because it is prime and its reverse (930946711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117649039 - 2³ = 117649031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117648992 and 117649010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117649031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58824519 + 58824520.

It is an arithmetic number, because the mean of its divisors is an integer number (58824520).

Almost surely, 2^117649039 is an apocalyptic number.

117649039 is a deficient number, since it is larger than the sum of its proper divisors (1).

117649039 is an equidigital number, since it uses as much as digits as its factorization.

117649039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 117649039 is about 10846.6141721737. The cubic root of 117649039 is about 490.0000541441. Note that the first 4 decimals are identical.

The spelling of 117649039 in words is "one hundred seventeen million, six hundred forty-nine thousand, thirty-nine".