785998079 has 2 divisors, whose sum is σ = 785998080. Its totient is φ = 785998078.

The previous prime is 785998063. The next prime is 785998091. The reversal of 785998079 is 970899587.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 785998079 - 2⁴ = 785998063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (785998379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392999039 + 392999040.

It is an arithmetic number, because the mean of its divisors is an integer number (392999040).

Almost surely, 2^785998079 is an apocalyptic number.

785998079 is a deficient number, since it is larger than the sum of its proper divisors (1).

785998079 is an equidigital number, since it uses as much as digits as its factorization.

785998079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 62.

The square root of 785998079 is about 28035.6572778310. The cubic root of 785998079 is about 922.8699285796.

The spelling of 785998079 in words is "seven hundred eighty-five million, nine hundred ninety-eight thousand, seventy-nine".