690773353 has 2 divisors, whose sum is σ = 690773354. Its totient is φ = 690773352.

The previous prime is 690773273. The next prime is 690773381. The reversal of 690773353 is 353377096.

690773353 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 can be written as a sum of positive squares in only one way, i.e., 571592464 + 119180889 = 23908^2 + 10917^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-690773353 is a prime.

It is not a weakly prime, because it can be changed into another prime (690773653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345386676 + 345386677.

It is an arithmetic number, because the mean of its divisors is an integer number (345386677).

Almost surely, 2^690773353 is an apocalyptic number.

It is an amenable number.

690773353 is a deficient number, since it is larger than the sum of its proper divisors (1).

690773353 is an equidigital number, since it uses as much as digits as its factorization.

690773353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 357210, while the sum is 43.

The square root of 690773353 is about 26282.5674735175. The cubic root of 690773353 is about 883.9856031350.

The spelling of 690773353 in words is "six hundred ninety million, seven hundred seventy-three thousand, three hundred fifty-three".