28849412 has 6 divisors (see below), whose sum is σ = 50486478. Its totient is φ = 14424704.

The previous prime is 28849369. The next prime is 28849433. The reversal of 28849412 is 21494882.

It can be written as a sum of positive squares in only one way, i.e., 19945156 + 8904256 = 4466^2 + 2984^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3606173 + ... + 3606180.

It is an arithmetic number, because the mean of its divisors is an integer number (8414413).

Almost surely, 2^28849412 is an apocalyptic number.

It is an amenable number.

28849412 is a deficient number, since it is larger than the sum of its proper divisors (21637066).

28849412 is a wasteful number, since it uses less digits than its factorization.

28849412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7212357 (or 7212355 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 28849412 is about 5371.1648643474. The cubic root of 28849412 is about 306.6989731770.

The spelling of 28849412 in words is "twenty-eight million, eight hundred forty-nine thousand, four hundred twelve".