28470523 has 8 divisors (see below), whose sum is σ = 29239056. Its totient is φ = 27705600.

The previous prime is 28470499. The next prime is 28470613. The reversal of 28470523 is 32507482.

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 28470523 - 2¹³ = 28462331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28470023) 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, 23728 + ... + 24898.

It is an arithmetic number, because the mean of its divisors is an integer number (3654882).

Almost surely, 2^28470523 is an apocalyptic number.

28470523 is a deficient number, since it is larger than the sum of its proper divisors (768533).

28470523 is a wasteful number, since it uses less digits than its factorization.

28470523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 28470523 is about 5335.7776377956. Note that the first 3 decimals coincide. The cubic root of 28470523 is about 305.3503918958.

It can be divided in two parts, 284 and 70523, that added together give a palindrome (70807).

The spelling of 28470523 in words is "twenty-eight million, four hundred seventy thousand, five hundred twenty-three".