28763075 has 12 divisors (see below), whose sum is σ = 38908968. Its totient is φ = 20918400.

The previous prime is 28763057. The next prime is 28763101. The reversal of 28763075 is 57036782.

It is a happy number.

It is not a de Polignac number, because 28763075 - 2⁶ = 28763011 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52022 + ... + 52571.

It is an arithmetic number, because the mean of its divisors is an integer number (3242414).

Almost surely, 2^28763075 is an apocalyptic number.

28763075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28763075 is a deficient number, since it is larger than the sum of its proper divisors (10145893).

28763075 is a wasteful number, since it uses less digits than its factorization.

28763075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104614 (or 104609 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 28763075 is about 5363.1217588267. The cubic root of 28763075 is about 306.3927170438.

The spelling of 28763075 in words is "twenty-eight million, seven hundred sixty-three thousand, seventy-five".