28835572 has 6 divisors (see below), whose sum is σ = 50462258. Its totient is φ = 14417784.

The previous prime is 28835567. The next prime is 28835579. The reversal of 28835572 is 27553882.

It can be written as a sum of positive squares in only one way, i.e., 28793956 + 41616 = 5366^2 + 204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28835579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3604443 + ... + 3604450.

Almost surely, 2^28835572 is an apocalyptic number.

It is an amenable number.

28835572 is a deficient number, since it is larger than the sum of its proper divisors (21626686).

28835572 is a wasteful number, since it uses less digits than its factorization.

28835572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7208897 (or 7208895 counting only the distinct ones).

The product of its digits is 134400, while the sum is 40.

The square root of 28835572 is about 5369.8763486695. The cubic root of 28835572 is about 306.6499208457.

The spelling of 28835572 in words is "twenty-eight million, eight hundred thirty-five thousand, five hundred seventy-two".