28926739 has 2 divisors, whose sum is σ = 28926740. Its totient is φ = 28926738.

The previous prime is 28926727. The next prime is 28926743. The reversal of 28926739 is 93762982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28926739 - 2¹⁷ = 28795667 is a prime.

It is not a weakly prime, because it can be changed into another prime (28926239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14463369 + 14463370.

It is an arithmetic number, because the mean of its divisors is an integer number (14463370).

Almost surely, 2^28926739 is an apocalyptic number.

28926739 is a deficient number, since it is larger than the sum of its proper divisors (1).

28926739 is an equidigital number, since it uses as much as digits as its factorization.

28926739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 28926739 is about 5378.3583926696. The cubic root of 28926739 is about 306.9727506080.

It can be divided in two parts, 289 and 26739, that added together give a triangular number (27028 = T₂₃₂).

The spelling of 28926739 in words is "twenty-eight million, nine hundred twenty-six thousand, seven hundred thirty-nine".