28630552 has 8 divisors (see below), whose sum is σ = 53682300. Its totient is φ = 14315272.

The previous prime is 28630543. The next prime is 28630573. The reversal of 28630552 is 25503682.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1789402 + ... + 1789417.

Almost surely, 2^28630552 is an apocalyptic number.

It is an amenable number.

28630552 is a deficient number, since it is larger than the sum of its proper divisors (25051748).

28630552 is a wasteful number, since it uses less digits than its factorization.

28630552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578825 (or 3578821 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 28630552 is about 5350.7524704475. The cubic root of 28630552 is about 305.9214345412.

The spelling of 28630552 in words is "twenty-eight million, six hundred thirty thousand, five hundred fifty-two".