28337473 has 4 divisors (see below), whose sum is σ = 28996528. Its totient is φ = 27678420.

The previous prime is 28337431. The next prime is 28337497. The reversal of 28337473 is 37473382.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28337473 - 2¹³ = 28329281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28334473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329463 + ... + 329548.

It is an arithmetic number, because the mean of its divisors is an integer number (7249132).

Almost surely, 2^28337473 is an apocalyptic number.

It is an amenable number.

28337473 is a deficient number, since it is larger than the sum of its proper divisors (659055).

28337473 is an equidigital number, since it uses as much as digits as its factorization.

28337473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659054.

The product of its digits is 84672, while the sum is 37.

The square root of 28337473 is about 5323.2953139949. The cubic root of 28337473 is about 304.8739889740.

The spelling of 28337473 in words is "twenty-eight million, three hundred thirty-seven thousand, four hundred seventy-three".