28050491 has 12 divisors (see below), whose sum is σ = 33391512. Its totient is φ = 23482368.

The previous prime is 28050487. The next prime is 28050497. The reversal of 28050491 is 19405082.

It is not a de Polignac number, because 28050491 - 2² = 28050487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28050497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4550 + ... + 8763.

It is an arithmetic number, because the mean of its divisors is an integer number (2782626).

Almost surely, 2^28050491 is an apocalyptic number.

28050491 is a deficient number, since it is larger than the sum of its proper divisors (5341021).

28050491 is a wasteful number, since it uses less digits than its factorization.

28050491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13370 (or 13363 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 28050491 is about 5296.2714243135. The cubic root of 28050491 is about 303.8413118871.

The spelling of 28050491 in words is "twenty-eight million, fifty thousand, four hundred ninety-one".