28992479 has 2 divisors, whose sum is σ = 28992480. Its totient is φ = 28992478.

The previous prime is 28992437. The next prime is 28992487. The reversal of 28992479 is 97429982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28992479 - 2¹⁶ = 28926943 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28992079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14496239 + 14496240.

It is an arithmetic number, because the mean of its divisors is an integer number (14496240).

Almost surely, 2^28992479 is an apocalyptic number.

28992479 is a deficient number, since it is larger than the sum of its proper divisors (1).

28992479 is an equidigital number, since it uses as much as digits as its factorization.

28992479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 50.

The square root of 28992479 is about 5384.4664545338. The cubic root of 28992479 is about 307.2051206230.

The spelling of 28992479 in words is "twenty-eight million, nine hundred ninety-two thousand, four hundred seventy-nine".