28956751 has 2 divisors, whose sum is σ = 28956752. Its totient is φ = 28956750.

The previous prime is 28956743. The next prime is 28956757. The reversal of 28956751 is 15765982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28956751 - 2³ = 28956743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28956698 and 28956707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28956757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14478375 + 14478376.

It is an arithmetic number, because the mean of its divisors is an integer number (14478376).

Almost surely, 2^28956751 is an apocalyptic number.

28956751 is a deficient number, since it is larger than the sum of its proper divisors (1).

28956751 is an equidigital number, since it uses as much as digits as its factorization.

28956751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 43.

The square root of 28956751 is about 5381.1477400272. The cubic root of 28956751 is about 307.0788771213.

The spelling of 28956751 in words is "twenty-eight million, nine hundred fifty-six thousand, seven hundred fifty-one".