28857794 has 8 divisors (see below), whose sum is σ = 49470528. Its totient is φ = 12367620.

The previous prime is 28857781. The next prime is 28857797. The reversal of 28857794 is 49775882.

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

It is not an unprimeable number, because it can be changed into a prime (28857797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030622 + ... + 1030649.

It is an arithmetic number, because the mean of its divisors is an integer number (6183816).

Almost surely, 2^28857794 is an apocalyptic number.

28857794 is a deficient number, since it is larger than the sum of its proper divisors (20612734).

28857794 is a wasteful number, since it uses less digits than its factorization.

28857794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061280.

The product of its digits is 1128960, while the sum is 50.

The square root of 28857794 is about 5371.9450853485. The cubic root of 28857794 is about 306.7286733995.

The spelling of 28857794 in words is "twenty-eight million, eight hundred fifty-seven thousand, seven hundred ninety-four".