8205457 has 12 divisors (see below), whose sum is σ = 9275904. Its totient is φ = 7241520.

The previous prime is 8205451. The next prime is 8205467. The reversal of 8205457 is 7545028.

It is not a de Polignac number, because 8205457 - 2¹¹ = 8203409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8205451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2832 + ... + 4942.

It is an arithmetic number, because the mean of its divisors is an integer number (772992).

Almost surely, 2^8205457 is an apocalyptic number.

It is an amenable number.

8205457 is a deficient number, since it is larger than the sum of its proper divisors (1070447).

8205457 is a wasteful number, since it uses less digits than its factorization.

8205457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160 (or 2147 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 8205457 is about 2864.5168877142. The cubic root of 8205457 is about 201.6976901327.

The spelling of 8205457 in words is "eight million, two hundred five thousand, four hundred fifty-seven".