8204457 has 4 divisors (see below), whose sum is σ = 10939280. Its totient is φ = 5469636.

The previous prime is 8204431. The next prime is 8204473. The reversal of 8204457 is 7544028.

8204457 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 8204457 - 2¹¹ = 8202409 is a prime.

It is a super-2 number, since 2×8204457² = 134626229329698, which contains 22 as substring.

It is a Duffinian number.

8204457 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8204657) 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, 1367407 + ... + 1367412.

It is an arithmetic number, because the mean of its divisors is an integer number (2734820).

Almost surely, 2^8204457 is an apocalyptic number.

It is an amenable number.

8204457 is a deficient number, since it is larger than the sum of its proper divisors (2734823).

8204457 is a wasteful number, since it uses less digits than its factorization.

8204457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734822.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 8204457 is about 2864.3423328925. The cubic root of 8204457 is about 201.6894961595.

The spelling of 8204457 in words is "eight million, two hundred four thousand, four hundred fifty-seven".