234987847 has 2 divisors, whose sum is σ = 234987848. Its totient is φ = 234987846.

The previous prime is 234987817. The next prime is 234987853. The reversal of 234987847 is 748789432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234987847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 234987794 and 234987803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234987817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117493923 + 117493924.

It is an arithmetic number, because the mean of its divisors is an integer number (117493924).

Almost surely, 2^234987847 is an apocalyptic number.

234987847 is a deficient number, since it is larger than the sum of its proper divisors (1).

234987847 is an equidigital number, since it uses as much as digits as its factorization.

234987847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2709504, while the sum is 52.

The square root of 234987847 is about 15329.3133244774. The cubic root of 234987847 is about 617.0899413307.

The spelling of 234987847 in words is "two hundred thirty-four million, nine hundred eighty-seven thousand, eight hundred forty-seven".