28995505 has 64 divisors (see below), whose sum is σ = 46656000. Its totient is φ = 17122560.

The previous prime is 28995503. The next prime is 28995541. The reversal of 28995505 is 50559982.

28995505 = T₃₂₉ + T₃₃₀ + ... + T₅₉₃.

It is not a de Polignac number, because 28995505 - 2¹ = 28995503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28995503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 547059 + ... + 547111.

It is an arithmetic number, because the mean of its divisors is an integer number (729000).

Almost surely, 2^28995505 is an apocalyptic number.

It is an amenable number.

28995505 is a deficient number, since it is larger than the sum of its proper divisors (17660495).

28995505 is a wasteful number, since it uses less digits than its factorization.

28995505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 43.

The square root of 28995505 is about 5384.7474406884. The cubic root of 28995505 is about 307.2158081114.

The spelling of 28995505 in words is "twenty-eight million, nine hundred ninety-five thousand, five hundred five".