28578058 has 8 divisors (see below), whose sum is σ = 43864128. Its totient is φ = 13956684.

The previous prime is 28578047. The next prime is 28578083. The reversal of 28578058 is 85087582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×28578058³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166066 + ... + 166237.

It is an arithmetic number, because the mean of its divisors is an integer number (5483016).

Almost surely, 2^28578058 is an apocalyptic number.

28578058 is a deficient number, since it is larger than the sum of its proper divisors (15286070).

28578058 is a wasteful number, since it uses less digits than its factorization.

28578058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332348.

The product of its (nonzero) digits is 179200, while the sum is 43.

The square root of 28578058 is about 5345.8449285403. The cubic root of 28578058 is about 305.7343515896.

The spelling of 28578058 in words is "twenty-eight million, five hundred seventy-eight thousand, fifty-eight".