84834977 has 2 divisors, whose sum is σ = 84834978. Its totient is φ = 84834976.

The previous prime is 84834973. The next prime is 84835013. The reversal of 84834977 is 77943848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70576801 + 14258176 = 8401^2 + 3776^2 .

It is a cyclic number.

It is not a de Polignac number, because 84834977 - 2² = 84834973 is a prime.

It is not a weakly prime, because it can be changed into another prime (84834973) 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, 42417488 + 42417489.

It is an arithmetic number, because the mean of its divisors is an integer number (42417489).

Almost surely, 2^84834977 is an apocalyptic number.

It is an amenable number.

84834977 is a deficient number, since it is larger than the sum of its proper divisors (1).

84834977 is an equidigital number, since it uses as much as digits as its factorization.

84834977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 50.

The square root of 84834977 is about 9210.5904805284. The cubic root of 84834977 is about 439.3982424757.

The spelling of 84834977 in words is "eighty-four million, eight hundred thirty-four thousand, nine hundred seventy-seven".