28362641 has 4 divisors (see below), whose sum is σ = 28786032. Its totient is φ = 27939252.

The previous prime is 28362629. The next prime is 28362643. The reversal of 28362641 is 14626382.

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 28362641 - 2¹⁸ = 28100497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28362598 and 28362607.

It is not an unprimeable number, because it can be changed into a prime (28362643) 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, 211595 + ... + 211728.

It is an arithmetic number, because the mean of its divisors is an integer number (7196508).

Almost surely, 2^28362641 is an apocalyptic number.

It is an amenable number.

28362641 is a deficient number, since it is larger than the sum of its proper divisors (423391).

28362641 is an equidigital number, since it uses as much as digits as its factorization.

28362641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423390.

The product of its digits is 13824, while the sum is 32.

The square root of 28362641 is about 5325.6587385975. The cubic root of 28362641 is about 304.9642204737.

The spelling of 28362641 in words is "twenty-eight million, three hundred sixty-two thousand, six hundred forty-one".