84784541 has 2 divisors, whose sum is σ = 84784542. Its totient is φ = 84784540.

The previous prime is 84784507. The next prime is 84784543. The reversal of 84784541 is 14548748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51768025 + 33016516 = 7195^2 + 5746^2 .

It is a cyclic number.

It is not a de Polignac number, because 84784541 - 2⁶ = 84784477 is a prime.

Together with 84784543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84784543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42392270 + 42392271.

It is an arithmetic number, because the mean of its divisors is an integer number (42392271).

Almost surely, 2^84784541 is an apocalyptic number.

It is an amenable number.

84784541 is a deficient number, since it is larger than the sum of its proper divisors (1).

84784541 is an equidigital number, since it uses as much as digits as its factorization.

84784541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 143360, while the sum is 41.

The square root of 84784541 is about 9207.8521382568. The cubic root of 84784541 is about 439.3111483557.

The spelling of 84784541 in words is "eighty-four million, seven hundred eighty-four thousand, five hundred forty-one".