8274389 has 4 divisors (see below), whose sum is σ = 8334924. Its totient is φ = 8213856.

The previous prime is 8274379. The next prime is 8274401. The reversal of 8274389 is 9834728.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3301489 + 4972900 = 1817^2 + 2230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8274389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8274379) 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 in 3 ways as a sum of consecutive naturals, for example, 30062 + ... + 30335.

It is an arithmetic number, because the mean of its divisors is an integer number (2083731).

Almost surely, 2^8274389 is an apocalyptic number.

It is an amenable number.

8274389 is a deficient number, since it is larger than the sum of its proper divisors (60535).

8274389 is a wasteful number, since it uses less digits than its factorization.

8274389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60534.

The product of its digits is 96768, while the sum is 41.

The square root of 8274389 is about 2876.5237701086. The cubic root of 8274389 is about 202.2609198955.

The spelling of 8274389 in words is "eight million, two hundred seventy-four thousand, three hundred eighty-nine".