8280957 has 4 divisors (see below), whose sum is σ = 11041280. Its totient is φ = 5520636.

The previous prime is 8280949. The next prime is 8280959. The reversal of 8280957 is 7590828.

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 not a de Polignac number, because 8280957 - 2³ = 8280949 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 (8280959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380157 + ... + 1380162.

It is an arithmetic number, because the mean of its divisors is an integer number (2760320).

Almost surely, 2^8280957 is an apocalyptic number.

It is an amenable number.

8280957 is a deficient number, since it is larger than the sum of its proper divisors (2760323).

8280957 is a wasteful number, since it uses less digits than its factorization.

8280957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760322.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 8280957 is about 2877.6651994282. The cubic root of 8280957 is about 202.3144222701.

The spelling of 8280957 in words is "eight million, two hundred eighty thousand, nine hundred fifty-seven".