28857302 has 8 divisors (see below), whose sum is σ = 43932216. Its totient is φ = 14213232.

The previous prime is 28857287. The next prime is 28857319. The reversal of 28857302 is 20375882.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107543 + ... + 107810.

It is an arithmetic number, because the mean of its divisors is an integer number (5491527).

Almost surely, 2^28857302 is an apocalyptic number.

28857302 is a deficient number, since it is larger than the sum of its proper divisors (15074914).

28857302 is a wasteful number, since it uses less digits than its factorization.

28857302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215422.

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

The square root of 28857302 is about 5371.8992916845. The cubic root of 28857302 is about 306.7269302382.

The spelling of 28857302 in words is "twenty-eight million, eight hundred fifty-seven thousand, three hundred two".