28063274 has 4 divisors (see below), whose sum is σ = 42094914. Its totient is φ = 14031636.

The previous prime is 28063237. The next prime is 28063283. The reversal of 28063274 is 47236082.

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., 21687649 + 6375625 = 4657^2 + 2525^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28063274.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7015817 + ... + 7015820.

Almost surely, 2^28063274 is an apocalyptic number.

28063274 is a deficient number, since it is larger than the sum of its proper divisors (14031640).

28063274 is a wasteful number, since it uses less digits than its factorization.

28063274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14031639.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 28063274 is about 5297.4780792373. The cubic root of 28063274 is about 303.8874597857.

The spelling of 28063274 in words is "twenty-eight million, sixty-three thousand, two hundred seventy-four".