787957601 has 2 divisors, whose sum is σ = 787957602. Its totient is φ = 787957600.

The previous prime is 787957591. The next prime is 787957619. The reversal of 787957601 is 106759787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 449397601 + 338560000 = 21199^2 + 18400^2 .

It is a cyclic number.

It is not a de Polignac number, because 787957601 - 2¹⁰ = 787956577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 787957601.

It is not a weakly prime, because it can be changed into another prime (787957691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393978800 + 393978801.

It is an arithmetic number, because the mean of its divisors is an integer number (393978801).

Almost surely, 2^787957601 is an apocalyptic number.

It is an amenable number.

787957601 is a deficient number, since it is larger than the sum of its proper divisors (1).

787957601 is an equidigital number, since it uses as much as digits as its factorization.

787957601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 740880, while the sum is 50.

The square root of 787957601 is about 28070.5824841595. The cubic root of 787957601 is about 923.6362083222.

The spelling of 787957601 in words is "seven hundred eighty-seven million, nine hundred fifty-seven thousand, six hundred one".