28468473 has 32 divisors (see below), whose sum is σ = 43327872. Its totient is φ = 16473600.

The previous prime is 28468471. The next prime is 28468493. The reversal of 28468473 is 37486482.

It is not a de Polignac number, because 28468473 - 2¹ = 28468471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28468471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71511 + ... + 71907.

It is an arithmetic number, because the mean of its divisors is an integer number (1353996).

Almost surely, 2^28468473 is an apocalyptic number.

It is an amenable number.

28468473 is a deficient number, since it is larger than the sum of its proper divisors (14859399).

28468473 is a wasteful number, since it uses less digits than its factorization.

28468473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505.

The product of its digits is 258048, while the sum is 42.

The square root of 28468473 is about 5335.5855348781. The cubic root of 28468473 is about 305.3430628731.

Subtracting 28468473 from its reverse (37486482), we obtain a square (9018009 = 3003²).

The spelling of 28468473 in words is "twenty-eight million, four hundred sixty-eight thousand, four hundred seventy-three".