28062101 has 4 divisors (see below), whose sum is σ = 28714752. Its totient is φ = 27409452.

The previous prime is 28062077. The next prime is 28062103. The reversal of 28062101 is 10126082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28062101 - 2²² = 23867797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28062103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326261 + ... + 326346.

It is an arithmetic number, because the mean of its divisors is an integer number (7178688).

Almost surely, 2^28062101 is an apocalyptic number.

It is an amenable number.

28062101 is a deficient number, since it is larger than the sum of its proper divisors (652651).

28062101 is an equidigital number, since it uses as much as digits as its factorization.

28062101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652650.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 28062101 is about 5297.3673650220. The cubic root of 28062101 is about 303.8832257234.

Adding to 28062101 its reverse (10126082), we get a palindrome (38188183).

The spelling of 28062101 in words is "twenty-eight million, sixty-two thousand, one hundred one".