107738891 has 4 divisors (see below), whose sum is σ = 116026512. Its totient is φ = 99451272.

The previous prime is 107738867. The next prime is 107738903. The reversal of 107738891 is 198837701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 198837701 = 71 ⋅2800531.

It is a cyclic number.

It is not a de Polignac number, because 107738891 - 2¹⁰ = 107737867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107738791) 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, 4143791 + ... + 4143816.

It is an arithmetic number, because the mean of its divisors is an integer number (29006628).

Almost surely, 2^107738891 is an apocalyptic number.

107738891 is a deficient number, since it is larger than the sum of its proper divisors (8287621).

107738891 is an equidigital number, since it uses as much as digits as its factorization.

107738891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8287620.

The product of its (nonzero) digits is 84672, while the sum is 44.

The square root of 107738891 is about 10379.7346305192. The cubic root of 107738891 is about 475.8362237566.

The spelling of 107738891 in words is "one hundred seven million, seven hundred thirty-eight thousand, eight hundred ninety-one".