28001627 has 4 divisors (see below), whose sum is σ = 28339080. Its totient is φ = 27664176.

The previous prime is 28001621. The next prime is 28001651. The reversal of 28001627 is 72610082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72610082 = 2 ⋅36305041.

It is a cyclic number.

It is not a de Polignac number, because 28001627 - 2¹⁰ = 28000603 is a prime.

It is a super-2 number, since 2×28001627² = 1568182229294258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28001596 and 28001605.

It is not an unprimeable number, because it can be changed into a prime (28001621) 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, 168602 + ... + 168767.

It is an arithmetic number, because the mean of its divisors is an integer number (7084770).

Almost surely, 2^28001627 is an apocalyptic number.

28001627 is a deficient number, since it is larger than the sum of its proper divisors (337453).

28001627 is an equidigital number, since it uses as much as digits as its factorization.

28001627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337452.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 28001627 is about 5291.6563569453. The cubic root of 28001627 is about 303.6647786573.

The spelling of 28001627 in words is "twenty-eight million, one thousand, six hundred twenty-seven".