84518677 has 2 divisors, whose sum is σ = 84518678. Its totient is φ = 84518676.

The previous prime is 84518663. The next prime is 84518717. The reversal of 84518677 is 77681548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67798756 + 16719921 = 8234^2 + 4089^2 .

It is a cyclic number.

It is not a de Polignac number, because 84518677 - 2¹⁵ = 84485909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84518647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42259338 + 42259339.

It is an arithmetic number, because the mean of its divisors is an integer number (42259339).

Almost surely, 2^84518677 is an apocalyptic number.

It is an amenable number.

84518677 is a deficient number, since it is larger than the sum of its proper divisors (1).

84518677 is an equidigital number, since it uses as much as digits as its factorization.

84518677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 46.

The square root of 84518677 is about 9193.4039941689. The cubic root of 84518677 is about 438.8514760562.

The spelling of 84518677 in words is "eighty-four million, five hundred eighteen thousand, six hundred seventy-seven".