28612855 has 8 divisors (see below), whose sum is σ = 34364592. Its totient is φ = 22870848.

The previous prime is 28612849. The next prime is 28612967. The reversal of 28612855 is 55821682.

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

It is a cyclic number.

It is not a de Polignac number, because 28612855 - 2⁵ = 28612823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8587 + ... + 11443.

It is an arithmetic number, because the mean of its divisors is an integer number (4295574).

Almost surely, 2^28612855 is an apocalyptic number.

28612855 is a deficient number, since it is larger than the sum of its proper divisors (5751737).

28612855 is a wasteful number, since it uses less digits than its factorization.

28612855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4865.

The product of its digits is 38400, while the sum is 37.

The square root of 28612855 is about 5349.0985221811. The cubic root of 28612855 is about 305.8583899134.

The spelling of 28612855 in words is "twenty-eight million, six hundred twelve thousand, eight hundred fifty-five".