28672751 has 2 divisors, whose sum is σ = 28672752. Its totient is φ = 28672750.

The previous prime is 28672741. The next prime is 28672811. The reversal of 28672751 is 15727682.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28672751 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 (28672741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14336375 + 14336376.

It is an arithmetic number, because the mean of its divisors is an integer number (14336376).

Almost surely, 2^28672751 is an apocalyptic number.

28672751 is a deficient number, since it is larger than the sum of its proper divisors (1).

28672751 is an equidigital number, since it uses as much as digits as its factorization.

28672751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 38.

The square root of 28672751 is about 5354.6942956625. The cubic root of 28672751 is about 306.0716614883.

It can be divided in two parts, 286 and 72751, that added together give a palindrome (73037).

The spelling of 28672751 in words is "twenty-eight million, six hundred seventy-two thousand, seven hundred fifty-one".