28770136 has 8 divisors (see below), whose sum is σ = 53944020. Its totient is φ = 14385064.

The previous prime is 28770113. The next prime is 28770143. The reversal of 28770136 is 63107782.

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 (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1798126 + ... + 1798141.

Almost surely, 2^28770136 is an apocalyptic number.

It is an amenable number.

28770136 is a deficient number, since it is larger than the sum of its proper divisors (25173884).

28770136 is a wasteful number, since it uses less digits than its factorization.

28770136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3596273 (or 3596269 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 28770136 is about 5363.7800104031. The cubic root of 28770136 is about 306.4177869406.

The spelling of 28770136 in words is "twenty-eight million, seven hundred seventy thousand, one hundred thirty-six".