28471541 has 4 divisors (see below), whose sum is σ = 32538912. Its totient is φ = 24404172.

The previous prime is 28471529. The next prime is 28471543. The reversal of 28471541 is 14517482.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28471541 - 2¹⁴ = 28455157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28471498 and 28471507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28471543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033675 + ... + 2033688.

It is an arithmetic number, because the mean of its divisors is an integer number (8134728).

Almost surely, 2^28471541 is an apocalyptic number.

It is an amenable number.

28471541 is a deficient number, since it is larger than the sum of its proper divisors (4067371).

28471541 is an equidigital number, since it uses as much as digits as its factorization.

28471541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067370.

The product of its digits is 8960, while the sum is 32.

The square root of 28471541 is about 5335.8730307233. The cubic root of 28471541 is about 305.3540312505.

The spelling of 28471541 in words is "twenty-eight million, four hundred seventy-one thousand, five hundred forty-one".