28535722 has 4 divisors (see below), whose sum is σ = 42803586. Its totient is φ = 14267860.

The previous prime is 28535711. The next prime is 28535729. The reversal of 28535722 is 22753582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16152361 + 12383361 = 4019^2 + 3519^2 .

It is a super-2 number, since 2×28535722² = 1628574860122568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28535729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7133929 + ... + 7133932.

Almost surely, 2^28535722 is an apocalyptic number.

28535722 is a deficient number, since it is larger than the sum of its proper divisors (14267864).

28535722 is a wasteful number, since it uses less digits than its factorization.

28535722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14267863.

The product of its digits is 33600, while the sum is 34.

The square root of 28535722 is about 5341.8837501391. The cubic root of 28535722 is about 305.5833036962.

The spelling of 28535722 in words is "twenty-eight million, five hundred thirty-five thousand, seven hundred twenty-two".