28894843 has 2 divisors, whose sum is σ = 28894844. Its totient is φ = 28894842.

The previous prime is 28894823. The next prime is 28894871. The reversal of 28894843 is 34849882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28894843 - 2¹³ = 28886651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28894793 and 28894802.

It is not a weakly prime, because it can be changed into another prime (28894823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14447421 + 14447422.

It is an arithmetic number, because the mean of its divisors is an integer number (14447422).

Almost surely, 2^28894843 is an apocalyptic number.

28894843 is a deficient number, since it is larger than the sum of its proper divisors (1).

28894843 is an equidigital number, since it uses as much as digits as its factorization.

28894843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 442368, while the sum is 46.

The square root of 28894843 is about 5375.3923577726. The cubic root of 28894843 is about 306.8598815216.

The spelling of 28894843 in words is "twenty-eight million, eight hundred ninety-four thousand, eight hundred forty-three".