28996783 has 2 divisors, whose sum is σ = 28996784. Its totient is φ = 28996782.

The previous prime is 28996771. The next prime is 28996787. The reversal of 28996783 is 38769982.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28996783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28996783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28996787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14498391 + 14498392.

It is an arithmetic number, because the mean of its divisors is an integer number (14498392).

Almost surely, 2^28996783 is an apocalyptic number.

28996783 is a deficient number, since it is larger than the sum of its proper divisors (1).

28996783 is an equidigital number, since it uses as much as digits as its factorization.

28996783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 52.

The square root of 28996783 is about 5384.8661078991. The cubic root of 28996783 is about 307.2203216390.

The spelling of 28996783 in words is "twenty-eight million, nine hundred ninety-six thousand, seven hundred eighty-three".