84775727 has 2 divisors, whose sum is σ = 84775728. Its totient is φ = 84775726.

The previous prime is 84775721. The next prime is 84775751. The reversal of 84775727 is 72757748.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84775727 - 2⁴ = 84775711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84775721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42387863 + 42387864.

It is an arithmetic number, because the mean of its divisors is an integer number (42387864).

Almost surely, 2^84775727 is an apocalyptic number.

84775727 is a deficient number, since it is larger than the sum of its proper divisors (1).

84775727 is an equidigital number, since it uses as much as digits as its factorization.

84775727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768320, while the sum is 47.

The square root of 84775727 is about 9207.3735125713. The cubic root of 84775727 is about 439.2959245794.

The spelling of 84775727 in words is "eighty-four million, seven hundred seventy-five thousand, seven hundred twenty-seven".