28635274 has 4 divisors (see below), whose sum is σ = 42952914. Its totient is φ = 14317636.

The previous prime is 28635137. The next prime is 28635283. The reversal of 28635274 is 47253682.

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., 22420225 + 6215049 = 4735^2 + 2493^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7158817 + ... + 7158820.

Almost surely, 2^28635274 is an apocalyptic number.

28635274 is a deficient number, since it is larger than the sum of its proper divisors (14317640).

28635274 is a wasteful number, since it uses less digits than its factorization.

28635274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14317639.

The product of its digits is 80640, while the sum is 37.

The square root of 28635274 is about 5351.1936986059. The cubic root of 28635274 is about 305.9382520258.

The spelling of 28635274 in words is "twenty-eight million, six hundred thirty-five thousand, two hundred seventy-four".