28341665 has 16 divisors (see below), whose sum is σ = 37267776. Its totient is φ = 20520000.

The previous prime is 28341661. The next prime is 28341689. The reversal of 28341665 is 56614382.

It is not a de Polignac number, because 28341665 - 2² = 28341661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28341661) 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, 12779 + ... + 14831.

It is an arithmetic number, because the mean of its divisors is an integer number (2329236).

Almost surely, 2^28341665 is an apocalyptic number.

It is an amenable number.

28341665 is a deficient number, since it is larger than the sum of its proper divisors (8926111).

28341665 is a wasteful number, since it uses less digits than its factorization.

28341665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320.

The product of its digits is 34560, while the sum is 35.

The square root of 28341665 is about 5323.6890405057. The cubic root of 28341665 is about 304.8890217041.

The spelling of 28341665 in words is "twenty-eight million, three hundred forty-one thousand, six hundred sixty-five".