8427069 has 36 divisors (see below), whose sum is σ = 14378364. Its totient is φ = 4741632.

The previous prime is 8427049. The next prime is 8427077. The reversal of 8427069 is 9607248.

It can be written as a sum of positive squares in 2 ways, for example, as 6563844 + 1863225 = 2562^2 + 1365^2 .

It is not a de Polignac number, because 8427069 - 2²³ = 38461 is a prime.

It is a super-2 number, since 2×8427069² = 142030983861522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8427049) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42679 + ... + 42875.

It is an arithmetic number, because the mean of its divisors is an integer number (399399).

Almost surely, 2^8427069 is an apocalyptic number.

It is an amenable number.

8427069 is a deficient number, since it is larger than the sum of its proper divisors (5951295).

8427069 is a wasteful number, since it uses less digits than its factorization.

8427069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 8427069 is about 2902.9414392991. The cubic root of 8427069 is about 203.4973930488.

The spelling of 8427069 in words is "eight million, four hundred twenty-seven thousand, sixty-nine".