28710790 has 16 divisors (see below), whose sum is σ = 54719712. Its totient is φ = 10808704.

The previous prime is 28710769. The next prime is 28710793. The reversal of 28710790 is 9701782.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28710793) 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, 84274 + ... + 84613.

It is an arithmetic number, because the mean of its divisors is an integer number (3419982).

Almost surely, 2^28710790 is an apocalyptic number.

28710790 is a deficient number, since it is larger than the sum of its proper divisors (26008922).

28710790 is a wasteful number, since it uses less digits than its factorization.

28710790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168911.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 28710790 is about 5358.2450485210. The cubic root of 28710790 is about 306.2069527166.

The spelling of 28710790 in words is "twenty-eight million, seven hundred ten thousand, seven hundred ninety".