42894523 has 4 divisors (see below), whose sum is σ = 49022320. Its totient is φ = 36766728.

The previous prime is 42894497. The next prime is 42894541. The reversal of 42894523 is 32549824.

It is a happy number.

42894523 is digitally balanced in base 2, 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.

It is a cyclic number.

It is not a de Polignac number, because 42894523 - 2⁵ = 42894491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42894223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3063888 + ... + 3063901.

It is an arithmetic number, because the mean of its divisors is an integer number (12255580).

Almost surely, 2^42894523 is an apocalyptic number.

42894523 is a deficient number, since it is larger than the sum of its proper divisors (6127797).

42894523 is an equidigital number, since it uses as much as digits as its factorization.

42894523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6127796.

The product of its digits is 69120, while the sum is 37.

The square root of 42894523 is about 6549.3910403945. The cubic root of 42894523 is about 350.0531157483.

The spelling of 42894523 in words is "forty-two million, eight hundred ninety-four thousand, five hundred twenty-three".