28394767 has 2 divisors, whose sum is σ = 28394768. Its totient is φ = 28394766.

The previous prime is 28394761. The next prime is 28394789. The reversal of 28394767 is 76749382.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28394767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28394761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14197383 + 14197384.

It is an arithmetic number, because the mean of its divisors is an integer number (14197384).

Almost surely, 2^28394767 is an apocalyptic number.

28394767 is a deficient number, since it is larger than the sum of its proper divisors (1).

28394767 is an equidigital number, since it uses as much as digits as its factorization.

28394767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 46.

The square root of 28394767 is about 5328.6740376946. The cubic root of 28394767 is about 305.0793200488.

It can be divided in two parts, 28394 and 767, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 28394767 in words is "twenty-eight million, three hundred ninety-four thousand, seven hundred sixty-seven".