117828049 has 2 divisors, whose sum is σ = 117828050. Its totient is φ = 117828048.

The previous prime is 117828047. The next prime is 117828119. The reversal of 117828049 is 940828711.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98406400 + 19421649 = 9920^2 + 4407^2 .

It is a cyclic number.

It is not a de Polignac number, because 117828049 - 2¹ = 117828047 is a prime.

It is a super-2 number, since 2×117828049² = 27766898262292802, which contains 22 as substring.

Together with 117828047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (117828047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58914024 + 58914025.

It is an arithmetic number, because the mean of its divisors is an integer number (58914025).

Almost surely, 2^117828049 is an apocalyptic number.

It is an amenable number.

117828049 is a deficient number, since it is larger than the sum of its proper divisors (1).

117828049 is an equidigital number, since it uses as much as digits as its factorization.

117828049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 117828049 is about 10854.8629194477. The cubic root of 117828049 is about 490.2484495983.

The spelling of 117828049 in words is "one hundred seventeen million, eight hundred twenty-eight thousand, forty-nine".