28461545 has 16 divisors (see below), whose sum is σ = 39191040. Its totient is φ = 19437504.

The previous prime is 28461539. The next prime is 28461569. The reversal of 28461545 is 54516482.

It is a cyclic number.

It is not a de Polignac number, because 28461545 - 2⁴ = 28461529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7904 + ... + 10926.

It is an arithmetic number, because the mean of its divisors is an integer number (2449440).

Almost surely, 2^28461545 is an apocalyptic number.

It is an amenable number.

28461545 is a deficient number, since it is larger than the sum of its proper divisors (10729495).

28461545 is a wasteful number, since it uses less digits than its factorization.

28461545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304.

The product of its digits is 38400, while the sum is 35.

The square root of 28461545 is about 5334.9362695350. The cubic root of 28461545 is about 305.3182917475.

The spelling of 28461545 in words is "twenty-eight million, four hundred sixty-one thousand, five hundred forty-five".