28422711 has 8 divisors (see below), whose sum is σ = 42107760. Its totient is φ = 18948456.

The previous prime is 28422707. The next prime is 28422721. The reversal of 28422711 is 11722482.

It is not a de Polignac number, because 28422711 - 2² = 28422707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1052693 = 28422711 / (2 + 8 + 4 + 2 + 2 + 7 + 1 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28422701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526320 + ... + 526373.

It is an arithmetic number, because the mean of its divisors is an integer number (5263470).

Almost surely, 2^28422711 is an apocalyptic number.

28422711 is a deficient number, since it is larger than the sum of its proper divisors (13685049).

28422711 is a wasteful number, since it uses less digits than its factorization.

28422711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052702 (or 1052696 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 28422711 is about 5331.2954335696. The cubic root of 28422711 is about 305.1793659651.

The spelling of 28422711 in words is "twenty-eight million, four hundred twenty-two thousand, seven hundred eleven".