28710473 has 8 divisors (see below), whose sum is σ = 31510080. Its totient is φ = 25942480.

The previous prime is 28710469. The next prime is 28710499. The reversal of 28710473 is 37401782.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28710473 - 2² = 28710469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28710413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5978 + ... + 9651.

It is an arithmetic number, because the mean of its divisors is an integer number (3938760).

Almost surely, 2^28710473 is an apocalyptic number.

It is an amenable number.

28710473 is a deficient number, since it is larger than the sum of its proper divisors (2799607).

28710473 is a wasteful number, since it uses less digits than its factorization.

28710473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15807.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 28710473 is about 5358.2154678587. The cubic root of 28710473 is about 306.2058257540.

The spelling of 28710473 in words is "twenty-eight million, seven hundred ten thousand, four hundred seventy-three".