28086201 has 48 divisors (see below), whose sum is σ = 48310080. Its totient is φ = 15500160.

The previous prime is 28086137. The next prime is 28086203. The reversal of 28086201 is 10268082.

It is not a de Polignac number, because 28086201 - 2⁶ = 28086137 is a prime.

It is a super-2 number, since 2×28086201² = 1577669373224802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28086203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 178815 + ... + 178971.

It is an arithmetic number, because the mean of its divisors is an integer number (1006460).

Almost surely, 2^28086201 is an apocalyptic number.

It is an amenable number.

28086201 is a deficient number, since it is larger than the sum of its proper divisors (20223879).

28086201 is a wasteful number, since it uses less digits than its factorization.

28086201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 28086201 is about 5299.6415916550. The cubic root of 28086201 is about 303.9701934361.

It can be divided in two parts, 2808 and 6201, that added together give a palindrome (9009).

The spelling of 28086201 in words is "twenty-eight million, eighty-six thousand, two hundred one".