8185457 has 16 divisors (see below), whose sum is σ = 9818112. Its totient is φ = 6676560.

The previous prime is 8185451. The next prime is 8185459. The reversal of 8185457 is 7545818.

It is a cyclic number.

It is not a de Polignac number, because 8185457 - 2¹² = 8181361 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8185457.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8185451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14258 + ... + 14820.

It is an arithmetic number, because the mean of its divisors is an integer number (613632).

Almost surely, 2^8185457 is an apocalyptic number.

It is an amenable number.

8185457 is a deficient number, since it is larger than the sum of its proper divisors (1632655).

8185457 is a wasteful number, since it uses less digits than its factorization.

8185457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668.

The product of its digits is 44800, while the sum is 38.

The square root of 8185457 is about 2861.0237678146. The cubic root of 8185457 is about 201.5336840043.

The spelling of 8185457 in words is "eight million, one hundred eighty-five thousand, four hundred fifty-seven".