28710430 has 16 divisors (see below), whose sum is σ = 59061600. Its totient is φ = 9843552.

The previous prime is 28710419. The next prime is 28710431. The reversal of 28710430 is 3401782.

It is a junction number, because it is equal to n+sod(n) for n = 28710395 and 28710404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28710431) 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, 205005 + ... + 205144.

It is an arithmetic number, because the mean of its divisors is an integer number (3691350).

Almost surely, 2^28710430 is an apocalyptic number.

28710430 is an abundant number, since it is smaller than the sum of its proper divisors (30351170).

28710430 is a wasteful number, since it uses less digits than its factorization.

28710430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410163.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 28710430 is about 5358.2114553272. The cubic root of 28710430 is about 306.2056728846.

The spelling of 28710430 in words is "twenty-eight million, seven hundred ten thousand, four hundred thirty".