107788987 has 4 divisors (see below), whose sum is σ = 108034960. Its totient is φ = 107543016.

The previous prime is 107788973. The next prime is 107789021. The reversal of 107788987 is 789887701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789887701 = 257 ⋅3073493.

It is a cyclic number.

It is not a de Polignac number, because 107788987 - 2⁷ = 107788859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107788927) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 122328 + ... + 123205.

It is an arithmetic number, because the mean of its divisors is an integer number (27008740).

Almost surely, 2^107788987 is an apocalyptic number.

107788987 is a deficient number, since it is larger than the sum of its proper divisors (245973).

107788987 is an equidigital number, since it uses as much as digits as its factorization.

107788987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245972.

The product of its (nonzero) digits is 1580544, while the sum is 55.

The square root of 107788987 is about 10382.1475138817. The cubic root of 107788987 is about 475.9099631389.

The spelling of 107788987 in words is "one hundred seven million, seven hundred eighty-eight thousand, nine hundred eighty-seven".