84774127 has 2 divisors, whose sum is σ = 84774128. Its totient is φ = 84774126.

The previous prime is 84774089. The next prime is 84774139. The reversal of 84774127 is 72147748.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84774127 - 2⁷ = 84773999 is a prime.

It is a super-2 number, since 2×84774127² = 14373305217224258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84774127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84774167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42387063 + 42387064.

It is an arithmetic number, because the mean of its divisors is an integer number (42387064).

Almost surely, 2^84774127 is an apocalyptic number.

84774127 is a deficient number, since it is larger than the sum of its proper divisors (1).

84774127 is an equidigital number, since it uses as much as digits as its factorization.

84774127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87808, while the sum is 40.

The square root of 84774127 is about 9207.2866252767. The cubic root of 84774127 is about 439.2931609035.

The spelling of 84774127 in words is "eighty-four million, seven hundred seventy-four thousand, one hundred twenty-seven".