28569754 has 4 divisors (see below), whose sum is σ = 42854634. Its totient is φ = 14284876.

The previous prime is 28569719. The next prime is 28569757. The reversal of 28569754 is 45796582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28569025 + 729 = 5345^2 + 27^2 .

It is not an unprimeable number, because it can be changed into a prime (28569757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7142437 + ... + 7142440.

Almost surely, 2^28569754 is an apocalyptic number.

28569754 is a deficient number, since it is larger than the sum of its proper divisors (14284880).

28569754 is a wasteful number, since it uses less digits than its factorization.

28569754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14284879.

The product of its digits is 604800, while the sum is 46.

The square root of 28569754 is about 5345.0681941393. The cubic root of 28569754 is about 305.7047360480.

The spelling of 28569754 in words is "twenty-eight million, five hundred sixty-nine thousand, seven hundred fifty-four".