28764152 has 32 divisors (see below), whose sum is σ = 55350000. Its totient is φ = 14009088.

The previous prime is 28764139. The next prime is 28764161. The reversal of 28764152 is 25146782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70124 + ... + 70532.

Almost surely, 2^28764152 is an apocalyptic number.

It is an amenable number.

28764152 is a deficient number, since it is larger than the sum of its proper divisors (26585848).

28764152 is a wasteful number, since it uses less digits than its factorization.

28764152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 619 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 28764152 is about 5363.2221658253. Note that the first 3 decimals coincide. The cubic root of 28764152 is about 306.3965411695.

The spelling of 28764152 in words is "twenty-eight million, seven hundred sixty-four thousand, one hundred fifty-two".