28414521 has 12 divisors (see below), whose sum is σ = 41091648. Its totient is φ = 18920664.

The previous prime is 28414513. The next prime is 28414541. The reversal of 28414521 is 12541482.

It is not a de Polignac number, because 28414521 - 2³ = 28414513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28414511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10516 + ... + 12938.

It is an arithmetic number, because the mean of its divisors is an integer number (3424304).

Almost surely, 2^28414521 is an apocalyptic number.

It is an amenable number.

28414521 is a deficient number, since it is larger than the sum of its proper divisors (12677127).

28414521 is a wasteful number, since it uses less digits than its factorization.

28414521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732 (or 3729 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 28414521 is about 5330.5272722311. The cubic root of 28414521 is about 305.1500506860.

The spelling of 28414521 in words is "twenty-eight million, four hundred fourteen thousand, five hundred twenty-one".