84745751 has 2 divisors, whose sum is σ = 84745752. Its totient is φ = 84745750.

The previous prime is 84745741. The next prime is 84745763. The reversal of 84745751 is 15754748.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84745751 - 2¹⁰ = 84744727 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 84745699 and 84745708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84745741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42372875 + 42372876.

It is an arithmetic number, because the mean of its divisors is an integer number (42372876).

Almost surely, 2^84745751 is an apocalyptic number.

84745751 is a deficient number, since it is larger than the sum of its proper divisors (1).

84745751 is an equidigital number, since it uses as much as digits as its factorization.

84745751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156800, while the sum is 41.

The square root of 84745751 is about 9205.7455428662. The cubic root of 84745751 is about 439.2441413333.

The spelling of 84745751 in words is "eighty-four million, seven hundred forty-five thousand, seven hundred fifty-one".