28759396 has 6 divisors (see below), whose sum is σ = 50328950. Its totient is φ = 14379696.

The previous prime is 28759391. The next prime is 28759403. The reversal of 28759396 is 69395782.

It can be written as a sum of positive squares in only one way, i.e., 20430400 + 8328996 = 4520^2 + 2886^2 .

It is not an unprimeable number, because it can be changed into a prime (28759391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3594921 + ... + 3594928.

Almost surely, 2^28759396 is an apocalyptic number.

It is an amenable number.

28759396 is a deficient number, since it is larger than the sum of its proper divisors (21569554).

28759396 is a wasteful number, since it uses less digits than its factorization.

28759396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7189853 (or 7189851 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The square root of 28759396 is about 5362.7787573235. The cubic root of 28759396 is about 306.3796532242.

The spelling of 28759396 in words is "twenty-eight million, seven hundred fifty-nine thousand, three hundred ninety-six".