788640571 has 2 divisors, whose sum is σ = 788640572. Its totient is φ = 788640570.

The previous prime is 788640521. The next prime is 788640613. The reversal of 788640571 is 175046887.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 788640571 - 2⁷ = 788640443 is a prime.

It is not a weakly prime, because it can be changed into another prime (788640521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394320285 + 394320286.

It is an arithmetic number, because the mean of its divisors is an integer number (394320286).

Almost surely, 2^788640571 is an apocalyptic number.

788640571 is a deficient number, since it is larger than the sum of its proper divisors (1).

788640571 is an equidigital number, since it uses as much as digits as its factorization.

788640571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 46.

The square root of 788640571 is about 28082.7450759359. The cubic root of 788640571 is about 923.9029881814.

The spelling of 788640571 in words is "seven hundred eighty-eight million, six hundred forty thousand, five hundred seventy-one".