28494543 has 32 divisors (see below), whose sum is σ = 47642112. Its totient is φ = 14716800.

The previous prime is 28494541. The next prime is 28494553. The reversal of 28494543 is 34549482.

It is not a de Polignac number, because 28494543 - 2¹ = 28494541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28494541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67473 + ... + 67893.

It is an arithmetic number, because the mean of its divisors is an integer number (1488816).

Almost surely, 2^28494543 is an apocalyptic number.

28494543 is a deficient number, since it is larger than the sum of its proper divisors (19147569).

28494543 is a wasteful number, since it uses less digits than its factorization.

28494543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735.

The product of its digits is 138240, while the sum is 39.

The square root of 28494543 is about 5338.0280066706. The cubic root of 28494543 is about 305.4362403916.

The spelling of 28494543 in words is "twenty-eight million, four hundred ninety-four thousand, five hundred forty-three".