107978 has 8 divisors (see below), whose sum is σ = 174468. Its totient is φ = 49824.

The previous prime is 107971. The next prime is 107981. The reversal of 107978 is 879701.

It can be written as a sum of positive squares in 2 ways, for example, as 80089 + 27889 = 283^2 + 167^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (107971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2051 + ... + 2102.

2¹⁰⁷⁹⁷⁸ is an apocalyptic number.

107978 is a deficient number, since it is larger than the sum of its proper divisors (66490).

107978 is a wasteful number, since it uses less digits than its factorization.

107978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 107978 is about 328.6000608643. The cubic root of 107978 is about 47.6187977447.

The spelling of 107978 in words is "one hundred seven thousand, nine hundred seventy-eight".