8255989 has 4 divisors (see below), whose sum is σ = 9435424. Its totient is φ = 7076556.

The previous prime is 8255983. The next prime is 8256007. The reversal of 8255989 is 9895528.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8255989 - 2¹⁷ = 8124917 is a prime.

It is a super-2 number, since 2×8255989² = 136322708736242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8255983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589707 + ... + 589720.

It is an arithmetic number, because the mean of its divisors is an integer number (2358856).

Almost surely, 2^8255989 is an apocalyptic number.

It is an amenable number.

8255989 is a deficient number, since it is larger than the sum of its proper divisors (1179435).

8255989 is a wasteful number, since it uses less digits than its factorization.

8255989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179434.

The product of its digits is 259200, while the sum is 46.

The square root of 8255989 is about 2873.3236852120. The cubic root of 8255989 is about 202.1108841265.

The spelling of 8255989 in words is "eight million, two hundred fifty-five thousand, nine hundred eighty-nine".