699580823 has 2 divisors, whose sum is σ = 699580824. Its totient is φ = 699580822.

The previous prime is 699580769. The next prime is 699580829. The reversal of 699580823 is 328085996.

699580823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-699580823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (699580829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349790411 + 349790412.

It is an arithmetic number, because the mean of its divisors is an integer number (349790412).

Almost surely, 2^699580823 is an apocalyptic number.

699580823 is a deficient number, since it is larger than the sum of its proper divisors (1).

699580823 is an equidigital number, since it uses as much as digits as its factorization.

699580823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 699580823 is about 26449.5902236689. The cubic root of 699580823 is about 887.7267335272.

The spelling of 699580823 in words is "six hundred ninety-nine million, five hundred eighty thousand, eight hundred twenty-three".