111873847 has 2 divisors, whose sum is σ = 111873848. Its totient is φ = 111873846.

The previous prime is 111873779. The next prime is 111873877. The reversal of 111873847 is 748378111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111873847 - 2¹⁹ = 111349559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111873877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55936923 + 55936924.

It is an arithmetic number, because the mean of its divisors is an integer number (55936924).

Almost surely, 2^111873847 is an apocalyptic number.

111873847 is a deficient number, since it is larger than the sum of its proper divisors (1).

111873847 is an equidigital number, since it uses as much as digits as its factorization.

111873847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 40.

The square root of 111873847 is about 10577.0433959590. The cubic root of 111873847 is about 481.8474046776.

The spelling of 111873847 in words is "one hundred eleven million, eight hundred seventy-three thousand, eight hundred forty-seven".