28860201 has 12 divisors (see below), whose sum is σ = 42215680. Its totient is φ = 18996120.

The previous prime is 28860197. The next prime is 28860233. The reversal of 28860201 is 10206882.

It is not a de Polignac number, because 28860201 - 2² = 28860197 is a prime.

It is a super-2 number, since 2×28860201² = 1665822403520802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28860001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19585 + ... + 21006.

Almost surely, 2^28860201 is an apocalyptic number.

It is an amenable number.

28860201 is a deficient number, since it is larger than the sum of its proper divisors (13355479).

28860201 is a wasteful number, since it uses less digits than its factorization.

28860201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40676 (or 40673 counting only the distinct ones).

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

The square root of 28860201 is about 5372.1691149851. The cubic root of 28860201 is about 306.7372011406.

The spelling of 28860201 in words is "twenty-eight million, eight hundred sixty thousand, two hundred one".