8118457 has 4 divisors (see below), whose sum is σ = 8239696. Its totient is φ = 7997220.

The previous prime is 8118433. The next prime is 8118493. The reversal of 8118457 is 7548118.

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 a cyclic number.

It is not a de Polignac number, because 8118457 - 2⁷ = 8118329 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (8118157) 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, 60519 + ... + 60652.

It is an arithmetic number, because the mean of its divisors is an integer number (2059924).

Almost surely, 2^8118457 is an apocalyptic number.

It is an amenable number.

8118457 is a deficient number, since it is larger than the sum of its proper divisors (121239).

8118457 is a wasteful number, since it uses less digits than its factorization.

8118457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121238.

The product of its digits is 8960, while the sum is 34.

The square root of 8118457 is about 2849.2906134686. The cubic root of 8118457 is about 200.9823091119.

The spelling of 8118457 in words is "eight million, one hundred eighteen thousand, four hundred fifty-seven".