8456542 has 4 divisors (see below), whose sum is σ = 12684816. Its totient is φ = 4228270.

The previous prime is 8456527. The next prime is 8456543. The reversal of 8456542 is 2456548.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 8456498 and 8456507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8456543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2114134 + ... + 2114137.

It is an arithmetic number, because the mean of its divisors is an integer number (3171204).

Almost surely, 2^8456542 is an apocalyptic number.

8456542 is a deficient number, since it is larger than the sum of its proper divisors (4228274).

8456542 is a wasteful number, since it uses less digits than its factorization.

8456542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228273.

The product of its digits is 38400, while the sum is 34.

The square root of 8456542 is about 2908.0134112483. The cubic root of 8456542 is about 203.7343556307.

It can be divided in two parts, 8456 and 542, that added together give a palindrome (8998).

The spelling of 8456542 in words is "eight million, four hundred fifty-six thousand, five hundred forty-two".