84702869 has 2 divisors, whose sum is σ = 84702870. Its totient is φ = 84702868.

The previous prime is 84702811. The next prime is 84702887. The reversal of 84702869 is 96820748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74218225 + 10484644 = 8615^2 + 3238^2 .

It is a cyclic number.

It is not a de Polignac number, because 84702869 - 2⁸ = 84702613 is a prime.

It is a super-2 number, since 2×84702869² = 14349152033662322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84702889) 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, 42351434 + 42351435.

It is an arithmetic number, because the mean of its divisors is an integer number (42351435).

Almost surely, 2^84702869 is an apocalyptic number.

It is an amenable number.

84702869 is a deficient number, since it is larger than the sum of its proper divisors (1).

84702869 is an equidigital number, since it uses as much as digits as its factorization.

84702869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 84702869 is about 9203.4161592313. The cubic root of 84702869 is about 439.1700418654.

The spelling of 84702869 in words is "eighty-four million, seven hundred two thousand, eight hundred sixty-nine".