28769045 has 16 divisors (see below), whose sum is σ = 35223552. Its totient is φ = 22553280.

The previous prime is 28768997. The next prime is 28769047. The reversal of 28769045 is 54096782.

It is not a de Polignac number, because 28769045 - 2¹⁰ = 28768021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28768993 and 28769011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28769047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74924 + ... + 75306.

It is an arithmetic number, because the mean of its divisors is an integer number (2201472).

Almost surely, 2^28769045 is an apocalyptic number.

It is an amenable number.

28769045 is a deficient number, since it is larger than the sum of its proper divisors (6454507).

28769045 is a wasteful number, since it uses less digits than its factorization.

28769045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 28769045 is about 5363.6783087728. The cubic root of 28769045 is about 306.4139136415.

The spelling of 28769045 in words is "twenty-eight million, seven hundred sixty-nine thousand, forty-five".