788222891 has 2 divisors, whose sum is σ = 788222892. Its totient is φ = 788222890.

The previous prime is 788222861. The next prime is 788222917. The reversal of 788222891 is 198222887.

It is a strong prime.

It is an emirp because it is prime and its reverse (198222887) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 788222891 - 2²² = 784028587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (788222801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394111445 + 394111446.

It is an arithmetic number, because the mean of its divisors is an integer number (394111446).

Almost surely, 2^788222891 is an apocalyptic number.

788222891 is a deficient number, since it is larger than the sum of its proper divisors (1).

788222891 is an equidigital number, since it uses as much as digits as its factorization.

788222891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 47.

The square root of 788222891 is about 28075.3074960899. The cubic root of 788222891 is about 923.7398534741.

The spelling of 788222891 in words is "seven hundred eighty-eight million, two hundred twenty-two thousand, eight hundred ninety-one".