28870373 has 8 divisors (see below), whose sum is σ = 33180480. Its totient is φ = 24606720.

The previous prime is 28870363. The next prime is 28870379. The reversal of 28870373 is 37307882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28870373 - 2⁸ = 28870117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28870379) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 10268 + ... + 12773.

It is an arithmetic number, because the mean of its divisors is an integer number (4147560).

Almost surely, 2^28870373 is an apocalyptic number.

It is an amenable number.

28870373 is a deficient number, since it is larger than the sum of its proper divisors (4310107).

28870373 is a wasteful number, since it uses less digits than its factorization.

28870373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23227.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 28870373 is about 5373.1157627581. The cubic root of 28870373 is about 306.7732342035.

The spelling of 28870373 in words is "twenty-eight million, eight hundred seventy thousand, three hundred seventy-three".