28013461 has 8 divisors (see below), whose sum is σ = 32333184. Its totient is φ = 23773200.

The previous prime is 28013441. The next prime is 28013497. The reversal of 28013461 is 16431082.

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 28013461 - 2⁹ = 28012949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28013411) 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, 19105 + ... + 20518.

It is an arithmetic number, because the mean of its divisors is an integer number (4041648).

Almost surely, 2^28013461 is an apocalyptic number.

It is an amenable number.

28013461 is a deficient number, since it is larger than the sum of its proper divisors (4319723).

28013461 is a wasteful number, since it uses less digits than its factorization.

28013461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39731.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 28013461 is about 5292.7744142368. The cubic root of 28013461 is about 303.7075507299.

The spelling of 28013461 in words is "twenty-eight million, thirteen thousand, four hundred sixty-one".