28760023 has 2 divisors, whose sum is σ = 28760024. Its totient is φ = 28760022.

The previous prime is 28760009. The next prime is 28760057. The reversal of 28760023 is 32006782.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28760023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28759973 and 28760000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28760093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14380011 + 14380012.

It is an arithmetic number, because the mean of its divisors is an integer number (14380012).

Almost surely, 2^28760023 is an apocalyptic number.

28760023 is a deficient number, since it is larger than the sum of its proper divisors (1).

28760023 is an equidigital number, since it uses as much as digits as its factorization.

28760023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 28760023 is about 5362.8372155045. The cubic root of 28760023 is about 306.3818797272.

The spelling of 28760023 in words is "twenty-eight million, seven hundred sixty thousand, twenty-three".