28530467 has 8 divisors (see below), whose sum is σ = 32640000. Its totient is φ = 24429384.

The previous prime is 28530451. The next prime is 28530473. The reversal of 28530467 is 76403582.

It is a happy number.

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

It is not a de Polignac number, because 28530467 - 2⁴ = 28530451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28530407) 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, 9134 + ... + 11852.

It is an arithmetic number, because the mean of its divisors is an integer number (4080000).

Almost surely, 2^28530467 is an apocalyptic number.

28530467 is a deficient number, since it is larger than the sum of its proper divisors (4109533).

28530467 is a wasteful number, since it uses less digits than its factorization.

28530467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 28530467 is about 5341.3918598058. The cubic root of 28530467 is about 305.5645442988.

The spelling of 28530467 in words is "twenty-eight million, five hundred thirty thousand, four hundred sixty-seven".