28326545 has 16 divisors (see below), whose sum is σ = 36970752. Its totient is φ = 20710080.

The previous prime is 28326503. The next prime is 28326553. The reversal of 28326545 is 54562382.

It is not a de Polignac number, because 28326545 - 2¹² = 28322449 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4580 + ... + 8810.

It is an arithmetic number, because the mean of its divisors is an integer number (2310672).

Almost surely, 2^28326545 is an apocalyptic number.

It is an amenable number.

28326545 is a deficient number, since it is larger than the sum of its proper divisors (8644207).

28326545 is a wasteful number, since it uses less digits than its factorization.

28326545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352.

The product of its digits is 57600, while the sum is 35.

The square root of 28326545 is about 5322.2687831413. The cubic root of 28326545 is about 304.8347936264.

The spelling of 28326545 in words is "twenty-eight million, three hundred twenty-six thousand, five hundred forty-five".