107981777 has 4 divisors (see below), whose sum is σ = 108009840. Its totient is φ = 107953716.

The previous prime is 107981767. The next prime is 107981779. The reversal of 107981777 is 777189701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 107981777 - 2⁸ = 107981521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107981779) 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, 7127 + ... + 16332.

It is an arithmetic number, because the mean of its divisors is an integer number (27002460).

Almost surely, 2^107981777 is an apocalyptic number.

It is an amenable number.

107981777 is a deficient number, since it is larger than the sum of its proper divisors (28063).

107981777 is an equidigital number, since it uses as much as digits as its factorization.

107981777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28062.

The product of its (nonzero) digits is 172872, while the sum is 47.

The square root of 107981777 is about 10391.4280539298. The cubic root of 107981777 is about 476.1935296307.

The spelling of 107981777 in words is "one hundred seven million, nine hundred eighty-one thousand, seven hundred seventy-seven".