28100755 has 8 divisors (see below), whose sum is σ = 33967872. Its totient is φ = 22315968.

The previous prime is 28100749. The next prime is 28100767. The reversal of 28100755 is 55700182.

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 28100755 - 2⁹ = 28100243 is a prime.

It is a Duffinian 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, 19827 + ... + 21196.

It is an arithmetic number, because the mean of its divisors is an integer number (4245984).

Almost surely, 2^28100755 is an apocalyptic number.

28100755 is a deficient number, since it is larger than the sum of its proper divisors (5867117).

28100755 is a wasteful number, since it uses less digits than its factorization.

28100755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41165.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 28100755 is about 5301.0145255413. The cubic root of 28100755 is about 304.0226891826.

The spelling of 28100755 in words is "twenty-eight million, one hundred thousand, seven hundred fifty-five".