28601655 has 16 divisors (see below), whose sum is σ = 45919104. Its totient is φ = 15202080.

The previous prime is 28601647. The next prime is 28601689. The reversal of 28601655 is 55610682.

It is not a de Polignac number, because 28601655 - 2³ = 28601647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1500 + ... + 7710.

It is an arithmetic number, because the mean of its divisors is an integer number (2869944).

Almost surely, 2^28601655 is an apocalyptic number.

28601655 is a deficient number, since it is larger than the sum of its proper divisors (17317449).

28601655 is a wasteful number, since it uses less digits than its factorization.

28601655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6526.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 28601655 is about 5348.0515143368. The cubic root of 28601655 is about 305.8184770720.

The spelling of 28601655 in words is "twenty-eight million, six hundred one thousand, six hundred fifty-five".