28513763 has 2 divisors, whose sum is σ = 28513764. Its totient is φ = 28513762.

The previous prime is 28513759. The next prime is 28513781. The reversal of 28513763 is 36731582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28513763 - 2² = 28513759 is a prime.

It is not a weakly prime, because it can be changed into another prime (28513733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14256881 + 14256882.

It is an arithmetic number, because the mean of its divisors is an integer number (14256882).

Almost surely, 2^28513763 is an apocalyptic number.

28513763 is a deficient number, since it is larger than the sum of its proper divisors (1).

28513763 is an equidigital number, since it uses as much as digits as its factorization.

28513763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 28513763 is about 5339.8279934844. The cubic root of 28513763 is about 305.5048987440.

The spelling of 28513763 in words is "twenty-eight million, five hundred thirteen thousand, seven hundred sixty-three".