107997979 has 2 divisors, whose sum is σ = 107997980. Its totient is φ = 107997978.

The previous prime is 107997973. The next prime is 107997997. The reversal of 107997979 is 979799701.

Together with next prime (107997997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 107997979 - 2³ = 107997971 is a prime.

It is not a weakly prime, because it can be changed into another prime (107997971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53998989 + 53998990.

It is an arithmetic number, because the mean of its divisors is an integer number (53998990).

Almost surely, 2^107997979 is an apocalyptic number.

107997979 is a deficient number, since it is larger than the sum of its proper divisors (1).

107997979 is an equidigital number, since it uses as much as digits as its factorization.

107997979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250423, while the sum is 58.

The square root of 107997979 is about 10392.2076095505. The cubic root of 107997979 is about 476.2173450742.

The spelling of 107997979 in words is "one hundred seven million, nine hundred ninety-seven thousand, nine hundred seventy-nine".