28410561 has 16 divisors (see below), whose sum is σ = 43228800. Its totient is φ = 18427824.

The previous prime is 28410559. The next prime is 28410583. The reversal of 28410561 is 16501482.

It is not a de Polignac number, because 28410561 - 2¹ = 28410559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (28410521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13221 + ... + 15218.

It is an arithmetic number, because the mean of its divisors is an integer number (2701800).

Almost surely, 2^28410561 is an apocalyptic number.

It is an amenable number.

28410561 is a deficient number, since it is larger than the sum of its proper divisors (14818239).

28410561 is a wasteful number, since it uses less digits than its factorization.

28410561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28485 (or 28479 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 28410561 is about 5330.1558138576. The cubic root of 28410561 is about 305.1358742450.

The spelling of 28410561 in words is "twenty-eight million, four hundred ten thousand, five hundred sixty-one".