84700843 has 2 divisors, whose sum is σ = 84700844. Its totient is φ = 84700842.

The previous prime is 84700823. The next prime is 84700849. The reversal of 84700843 is 34800748.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84700843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84700799 and 84700808.

It is not a weakly prime, because it can be changed into another prime (84700849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42350421 + 42350422.

It is an arithmetic number, because the mean of its divisors is an integer number (42350422).

Almost surely, 2^84700843 is an apocalyptic number.

84700843 is a deficient number, since it is larger than the sum of its proper divisors (1).

84700843 is an equidigital number, since it uses as much as digits as its factorization.

84700843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 84700843 is about 9203.3060907480. The cubic root of 84700843 is about 439.1665403484.

The spelling of 84700843 in words is "eighty-four million, seven hundred thousand, eight hundred forty-three".