28774202 has 4 divisors (see below), whose sum is σ = 43161306. Its totient is φ = 14387100.

The previous prime is 28774201. The next prime is 28774211. The reversal of 28774202 is 20247782.

It is a happy number.

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., 27258841 + 1515361 = 5221^2 + 1231^2 .

It is not an unprimeable number, because it can be changed into a prime (28774201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7193549 + ... + 7193552.

Almost surely, 2^28774202 is an apocalyptic number.

28774202 is a deficient number, since it is larger than the sum of its proper divisors (14387104).

28774202 is a wasteful number, since it uses less digits than its factorization.

28774202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14387103.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 28774202 is about 5364.1590207599. The cubic root of 28774202 is about 306.4322213068.

The spelling of 28774202 in words is "twenty-eight million, seven hundred seventy-four thousand, two hundred two".