28816754 has 4 divisors (see below), whose sum is σ = 43225134. Its totient is φ = 14408376.

The previous prime is 28816703. The next prime is 28816759. The reversal of 28816754 is 45761882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45761882 = 2 ⋅22880941.

It can be written as a sum of positive squares in only one way, i.e., 27196225 + 1620529 = 5215^2 + 1273^2 .

It is a super-2 number, since 2×28816754² = 1660810622193032, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28816759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7204187 + ... + 7204190.

Almost surely, 2^28816754 is an apocalyptic number.

28816754 is a deficient number, since it is larger than the sum of its proper divisors (14408380).

28816754 is a wasteful number, since it uses less digits than its factorization.

28816754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14408379.

The product of its digits is 107520, while the sum is 41.

The square root of 28816754 is about 5368.1238808358. The cubic root of 28816754 is about 306.5832000845.

The spelling of 28816754 in words is "twenty-eight million, eight hundred sixteen thousand, seven hundred fifty-four".