28461533 has 8 divisors (see below), whose sum is σ = 29090400. Its totient is φ = 27838800.

The previous prime is 28461529. The next prime is 28461539. The reversal of 28461533 is 33516482.

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 28461533 - 2² = 28461529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28461533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28461539) 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, 8558 + ... + 11408.

It is an arithmetic number, because the mean of its divisors is an integer number (3636300).

Almost surely, 2^28461533 is an apocalyptic number.

It is an amenable number.

28461533 is a deficient number, since it is larger than the sum of its proper divisors (628867).

28461533 is a wasteful number, since it uses less digits than its factorization.

28461533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067.

The product of its digits is 17280, while the sum is 32.

The square root of 28461533 is about 5334.9351448729. The cubic root of 28461533 is about 305.3182488379.

The spelling of 28461533 in words is "twenty-eight million, four hundred sixty-one thousand, five hundred thirty-three".