8424869 has 2 divisors, whose sum is σ = 8424870. Its totient is φ = 8424868.

The previous prime is 8424853. The next prime is 8424883. The reversal of 8424869 is 9684248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4464769 + 3960100 = 2113^2 + 1990^2 .

It is a cyclic number.

It is not a de Polignac number, because 8424869 - 2⁴ = 8424853 is a prime.

It is a super-2 number, since 2×8424869² = 141956835334322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8424569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4212434 + 4212435.

It is an arithmetic number, because the mean of its divisors is an integer number (4212435).

Almost surely, 2^8424869 is an apocalyptic number.

It is an amenable number.

8424869 is a deficient number, since it is larger than the sum of its proper divisors (1).

8424869 is an equidigital number, since it uses as much as digits as its factorization.

8424869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 41.

The square root of 8424869 is about 2902.5624885608. The cubic root of 8424869 is about 203.4796829280.

The spelling of 8424869 in words is "eight million, four hundred twenty-four thousand, eight hundred sixty-nine".