28472767 has 2 divisors, whose sum is σ = 28472768. Its totient is φ = 28472766.

The previous prime is 28472747. The next prime is 28472771. The reversal of 28472767 is 76727482.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28472767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28472707) 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, 14236383 + 14236384.

It is an arithmetic number, because the mean of its divisors is an integer number (14236384).

Almost surely, 2^28472767 is an apocalyptic number.

28472767 is a deficient number, since it is larger than the sum of its proper divisors (1).

28472767 is an equidigital number, since it uses as much as digits as its factorization.

28472767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 263424, while the sum is 43.

The square root of 28472767 is about 5335.9879122802. The cubic root of 28472767 is about 305.3584140910.

The spelling of 28472767 in words is "twenty-eight million, four hundred seventy-two thousand, seven hundred sixty-seven".