28765675 has 12 divisors (see below), whose sum is σ = 36821056. Its totient is φ = 22269600.

The previous prime is 28765673. The next prime is 28765679. The reversal of 28765675 is 57656782.

It is not a de Polignac number, because 28765675 - 2¹ = 28765673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28765673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17784 + ... + 19333.

Almost surely, 2^28765675 is an apocalyptic number.

28765675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28765675 is a deficient number, since it is larger than the sum of its proper divisors (8055381).

28765675 is a wasteful number, since it uses less digits than its factorization.

28765675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37158 (or 37153 counting only the distinct ones).

The product of its digits is 705600, while the sum is 46.

The square root of 28765675 is about 5363.3641494868. The cubic root of 28765675 is about 306.4019487534.

It can be divided in two parts, 28 and 765675, that added together give a triangular number (765703 = T₁₂₃₇).

The spelling of 28765675 in words is "twenty-eight million, seven hundred sixty-five thousand, six hundred seventy-five".