28377017 has 8 divisors (see below), whose sum is σ = 29019720. Its totient is φ = 27740160.

The previous prime is 28377001. The next prime is 28377023. The reversal of 28377017 is 71077382.

It can be written as a sum of positive squares in 4 ways, for example, as 32041 + 28344976 = 179^2 + 5324^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28377017 - 2⁴ = 28377001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28377047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9209 + ... + 11897.

It is an arithmetic number, because the mean of its divisors is an integer number (3627465).

Almost surely, 2^28377017 is an apocalyptic number.

It is an amenable number.

28377017 is a deficient number, since it is larger than the sum of its proper divisors (642703).

28377017 is a wasteful number, since it uses less digits than its factorization.

28377017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2923.

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 28377017 is about 5327.0082598021. The cubic root of 28377017 is about 305.0157368929.

The spelling of 28377017 in words is "twenty-eight million, three hundred seventy-seven thousand, seventeen".