28892155 has 16 divisors (see below), whose sum is σ = 36474624. Its totient is φ = 21939840.

The previous prime is 28892137. The next prime is 28892183. The reversal of 28892155 is 55129882.

It is not a de Polignac number, because 28892155 - 2¹³ = 28883963 is a prime.

It is a Duffinian 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, 6457 + ... + 9973.

It is an arithmetic number, because the mean of its divisors is an integer number (2279664).

Almost surely, 2^28892155 is an apocalyptic number.

28892155 is a deficient number, since it is larger than the sum of its proper divisors (7582469).

28892155 is a wasteful number, since it uses less digits than its factorization.

28892155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606.

The product of its digits is 57600, while the sum is 40.

The square root of 28892155 is about 5375.1423236971. The cubic root of 28892155 is about 306.8503658104.

The spelling of 28892155 in words is "twenty-eight million, eight hundred ninety-two thousand, one hundred fifty-five".