28767075 has 24 divisors (see below), whose sum is σ = 48465648. Its totient is φ = 15050880.

The previous prime is 28767071. The next prime is 28767113. The reversal of 28767075 is 57076782.

It is not a de Polignac number, because 28767075 - 2² = 28767071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28767071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 357 + ... + 7593.

It is an arithmetic number, because the mean of its divisors is an integer number (2019402).

Almost surely, 2^28767075 is an apocalyptic number.

28767075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28767075 is a deficient number, since it is larger than the sum of its proper divisors (19698573).

28767075 is a wasteful number, since it uses less digits than its factorization.

28767075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7303 (or 7298 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 28767075 is about 5363.4946629973. The cubic root of 28767075 is about 306.4069194435.

The spelling of 28767075 in words is "twenty-eight million, seven hundred sixty-seven thousand, seventy-five".