28543070 has 16 divisors (see below), whose sum is σ = 51491808. Its totient is φ = 11391840.

The previous prime is 28543063. The next prime is 28543087. The reversal of 28543070 is 7034582.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1940 + ... + 7800.

It is an arithmetic number, because the mean of its divisors is an integer number (3218238).

Almost surely, 2^28543070 is an apocalyptic number.

28543070 is a deficient number, since it is larger than the sum of its proper divisors (22948738).

28543070 is a wasteful number, since it uses less digits than its factorization.

28543070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6355.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 28543070 is about 5342.5714782303. The cubic root of 28543070 is about 305.6095308628.

The spelling of 28543070 in words is "twenty-eight million, five hundred forty-three thousand, seventy".