115747830 has 96 divisors (see below), whose sum is σ = 336061440. Its totient is φ = 27397440.

The previous prime is 115747817. The next prime is 115747843. The reversal of 115747830 is 38747511.

115747830 is a `hidden beast` number, since 1 + 1 + 574 + 7 + 83 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (115747817) and next prime (115747843).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41211 + ... + 43929.

It is an arithmetic number, because the mean of its divisors is an integer number (3500640).

Almost surely, 2^115747830 is an apocalyptic number.

115747830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 115747830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168030720).

115747830 is an abundant number, since it is smaller than the sum of its proper divisors (220313610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115747830 is a wasteful number, since it uses less digits than its factorization.

115747830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786 (or 2783 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 115747830 is about 10758.6165467499. The cubic root of 115747830 is about 487.3462394765.

The spelling of 115747830 in words is "one hundred fifteen million, seven hundred forty-seven thousand, eight hundred thirty".