28578675 has 24 divisors (see below), whose sum is σ = 47409664. Its totient is φ = 15190560.

The previous prime is 28578661. The next prime is 28578691. The reversal of 28578675 is 57687582.

It is not a de Polignac number, because 28578675 - 2⁹ = 28578163 is a prime.

It is a Duffinian 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 23 ways as a sum of consecutive naturals, for example, 34314 + ... + 35136.

Almost surely, 2^28578675 is an apocalyptic number.

28578675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28578675 is a deficient number, since it is larger than the sum of its proper divisors (18830989).

28578675 is a wasteful number, since it uses less digits than its factorization.

28578675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299 (or 1294 counting only the distinct ones).

The product of its digits is 940800, while the sum is 48.

The square root of 28578675 is about 5345.9026365994. The cubic root of 28578675 is about 305.7365518410.

The spelling of 28578675 in words is "twenty-eight million, five hundred seventy-eight thousand, six hundred seventy-five".