699999953 has 2 divisors, whose sum is σ = 699999954. Its totient is φ = 699999952.

The previous prime is 699999913. The next prime is 700000001. The reversal of 699999953 is 359999996.

It is a happy number.

699999953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 458259649 + 241740304 = 21407^2 + 15548^2 .

It is a cyclic number.

It is not a de Polignac number, because 699999953 - 2⁶ = 699999889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (699999913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349999976 + 349999977.

It is an arithmetic number, because the mean of its divisors is an integer number (349999977).

Almost surely, 2^699999953 is an apocalyptic number.

It is an amenable number.

699999953 is a deficient number, since it is larger than the sum of its proper divisors (1).

699999953 is an equidigital number, since it uses as much as digits as its factorization.

699999953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47829690, while the sum is 68.

The square root of 699999953 is about 26457.5122224294. The cubic root of 699999953 is about 887.9039818705.

The spelling of 699999953 in words is "six hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred fifty-three".