28014554 has 4 divisors (see below), whose sum is σ = 42021834. Its totient is φ = 14007276.

The previous prime is 28014523. The next prime is 28014559. The reversal of 28014554 is 45541082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45541082 = 2 ⋅22770541.

It can be written as a sum of positive squares in only one way, i.e., 20912329 + 7102225 = 4573^2 + 2665^2 .

It is not an unprimeable number, because it can be changed into a prime (28014559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7003637 + ... + 7003640.

Almost surely, 2^28014554 is an apocalyptic number.

28014554 is a deficient number, since it is larger than the sum of its proper divisors (14007280).

28014554 is a wasteful number, since it uses less digits than its factorization.

28014554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14007279.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 28014554 is about 5292.8776672052. The cubic root of 28014554 is about 303.7115005934.

The spelling of 28014554 in words is "twenty-eight million, fourteen thousand, five hundred fifty-four".