28570794 has 32 divisors (see below), whose sum is σ = 68743680. Its totient is φ = 7733232.

The previous prime is 28570793. The next prime is 28570811. The reversal of 28570794 is 49707582.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (28570793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17104 + ... + 18699.

It is an arithmetic number, because the mean of its divisors is an integer number (2148240).

Almost surely, 2^28570794 is an apocalyptic number.

28570794 is an abundant number, since it is smaller than the sum of its proper divisors (40172886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28570794 is a wasteful number, since it uses less digits than its factorization.

28570794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35834.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 28570794 is about 5345.1654791971. The cubic root of 28570794 is about 305.7084454378.

The spelling of 28570794 in words is "twenty-eight million, five hundred seventy thousand, seven hundred ninety-four".