788728867 has 2 divisors, whose sum is σ = 788728868. Its totient is φ = 788728866.

The previous prime is 788728823. The next prime is 788728873. The reversal of 788728867 is 768827887.

It is a strong prime.

It is an emirp because it is prime and its reverse (768827887) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 788728867 - 2²³ = 780340259 is a prime.

It is not a weakly prime, because it can be changed into another prime (788728807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394364433 + 394364434.

It is an arithmetic number, because the mean of its divisors is an integer number (394364434).

Almost surely, 2^788728867 is an apocalyptic number.

788728867 is a deficient number, since it is larger than the sum of its proper divisors (1).

788728867 is an equidigital number, since it uses as much as digits as its factorization.

788728867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16859136, while the sum is 61.

The square root of 788728867 is about 28084.3171004744. The cubic root of 788728867 is about 923.9374668768.

The spelling of 788728867 in words is "seven hundred eighty-eight million, seven hundred twenty-eight thousand, eight hundred sixty-seven".