28750754 has 4 divisors (see below), whose sum is σ = 43126134. Its totient is φ = 14375376.

The previous prime is 28750753. The next prime is 28750769. The reversal of 28750754 is 45705782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45705782 = 2 ⋅22852891.

It can be written as a sum of positive squares in only one way, i.e., 24730729 + 4020025 = 4973^2 + 2005^2 .

It is not an unprimeable number, because it can be changed into a prime (28750753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7187687 + ... + 7187690.

Almost surely, 2^28750754 is an apocalyptic number.

28750754 is a deficient number, since it is larger than the sum of its proper divisors (14375380).

28750754 is a wasteful number, since it uses less digits than its factorization.

28750754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14375379.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 28750754 is about 5361.9729577834. The cubic root of 28750754 is about 306.3489618261.

The spelling of 28750754 in words is "twenty-eight million, seven hundred fifty thousand, seven hundred fifty-four".