28760399 has 2 divisors, whose sum is σ = 28760400. Its totient is φ = 28760398.

The previous prime is 28760387. The next prime is 28760411. The reversal of 28760399 is 99306782.

It is a balanced prime because it is at equal distance from previous prime (28760387) and next prime (28760411).

It is a cyclic number.

It is not a de Polignac number, because 28760399 - 2⁴ = 28760383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28760899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14380199 + 14380200.

It is an arithmetic number, because the mean of its divisors is an integer number (14380200).

Almost surely, 2^28760399 is an apocalyptic number.

28760399 is a deficient number, since it is larger than the sum of its proper divisors (1).

28760399 is an equidigital number, since it uses as much as digits as its factorization.

28760399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 28760399 is about 5362.8722714605. The cubic root of 28760399 is about 306.3832149033.

The spelling of 28760399 in words is "twenty-eight million, seven hundred sixty thousand, three hundred ninety-nine".