28853778 has 8 divisors (see below), whose sum is σ = 57707568. Its totient is φ = 9617924.

The previous prime is 28853767. The next prime is 28853789. The reversal of 28853778 is 87735882.

It is an interprime number because it is at equal distance from previous prime (28853767) and next prime (28853789).

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

28853778 is an admirable number.

It is a Curzon number.

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, 2404476 + ... + 2404487.

It is an arithmetic number, because the mean of its divisors is an integer number (7213446).

Almost surely, 2^28853778 is an apocalyptic number.

28853778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28853778 is a wasteful number, since it uses less digits than its factorization.

28853778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4808968.

The product of its digits is 752640, while the sum is 48.

The square root of 28853778 is about 5371.5712784994. The cubic root of 28853778 is about 306.7144440894.

The spelling of 28853778 in words is "twenty-eight million, eight hundred fifty-three thousand, seven hundred seventy-eight".