28054916 has 6 divisors (see below), whose sum is σ = 49096110. Its totient is φ = 14027456.

The previous prime is 28054903. The next prime is 28054921. The reversal of 28054916 is 61945082.

It can be written as a sum of positive squares in only one way, i.e., 22052416 + 6002500 = 4696^2 + 2450^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3506861 + ... + 3506868.

It is an arithmetic number, because the mean of its divisors is an integer number (8182685).

Almost surely, 2^28054916 is an apocalyptic number.

It is an amenable number.

28054916 is a deficient number, since it is larger than the sum of its proper divisors (21041194).

28054916 is a wasteful number, since it uses less digits than its factorization.

28054916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7013733 (or 7013731 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 28054916 is about 5296.6891545568. The cubic root of 28054916 is about 303.8572881626.

Adding to 28054916 its reverse (61945082), we get a palindrome (89999998).

The spelling of 28054916 in words is "twenty-eight million, fifty-four thousand, nine hundred sixteen".