28053711 has 12 divisors (see below), whose sum is σ = 46310992. Its totient is φ = 16030656.

The previous prime is 28053679. The next prime is 28053713. The reversal of 28053711 is 11735082.

It is not a de Polignac number, because 28053711 - 2⁵ = 28053679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28053713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222586 + ... + 222711.

Almost surely, 2^28053711 is an apocalyptic number.

28053711 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

28053711 is a deficient number, since it is larger than the sum of its proper divisors (18257281).

28053711 is a wasteful number, since it uses less digits than its factorization.

28053711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445310 (or 445307 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 28053711 is about 5296.5754030317. The cubic root of 28053711 is about 303.8529377275.

Adding to 28053711 its reverse (11735082), we get a palindrome (39788793).

The spelling of 28053711 in words is "twenty-eight million, fifty-three thousand, seven hundred eleven".