28630473 has 16 divisors (see below), whose sum is σ = 41041920. Its totient is φ = 17696016.

The previous prime is 28630463. The next prime is 28630487. The reversal of 28630473 is 37403682.

It is not a de Polignac number, because 28630473 - 2⁴ = 28630457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28630463) 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, 2665 + ... + 8022.

It is an arithmetic number, because the mean of its divisors is an integer number (2565120).

Almost surely, 2^28630473 is an apocalyptic number.

It is an amenable number.

28630473 is a deficient number, since it is larger than the sum of its proper divisors (12411447).

28630473 is a wasteful number, since it uses less digits than its factorization.

28630473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10756.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 28630473 is about 5350.7450883031. The cubic root of 28630473 is about 305.9211531656.

The spelling of 28630473 in words is "twenty-eight million, six hundred thirty thousand, four hundred seventy-three".