84298729 has 2 divisors, whose sum is σ = 84298730. Its totient is φ = 84298728.

The previous prime is 84298693. The next prime is 84298769. The reversal of 84298729 is 92789248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83905600 + 393129 = 9160^2 + 627^2 .

It is a cyclic number.

It is not a de Polignac number, because 84298729 - 2⁹ = 84298217 is a prime.

It is a super-2 number, since 2×84298729² = 14212551422030882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84298769) 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, 42149364 + 42149365.

It is an arithmetic number, because the mean of its divisors is an integer number (42149365).

Almost surely, 2^84298729 is an apocalyptic number.

It is an amenable number.

84298729 is a deficient number, since it is larger than the sum of its proper divisors (1).

84298729 is an equidigital number, since it uses as much as digits as its factorization.

84298729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 49.

The square root of 84298729 is about 9181.4339294034. The cubic root of 84298729 is about 438.4704622194.

The spelling of 84298729 in words is "eighty-four million, two hundred ninety-eight thousand, seven hundred twenty-nine".