28758052 has 6 divisors (see below), whose sum is σ = 50326598. Its totient is φ = 14379024.

The previous prime is 28758047. The next prime is 28758071. The reversal of 28758052 is 25085782.

It can be written as a sum of positive squares in only one way, i.e., 28472896 + 285156 = 5336^2 + 534^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3594753 + ... + 3594760.

Almost surely, 2^28758052 is an apocalyptic number.

It is an amenable number.

28758052 is a deficient number, since it is larger than the sum of its proper divisors (21568546).

28758052 is a wasteful number, since it uses less digits than its factorization.

28758052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7189517 (or 7189515 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 28758052 is about 5362.6534476880. The cubic root of 28758052 is about 306.3748805154.

The spelling of 28758052 in words is "twenty-eight million, seven hundred fifty-eight thousand, fifty-two".