783664853 has 2 divisors, whose sum is σ = 783664854. Its totient is φ = 783664852.

The previous prime is 783664829. The next prime is 783664877. The reversal of 783664853 is 358466387.

It is a balanced prime because it is at equal distance from previous prime (783664829) and next prime (783664877).

It can be written as a sum of positive squares in only one way, i.e., 451222564 + 332442289 = 21242^2 + 18233^2 .

It is an emirp because it is prime and its reverse (358466387) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 783664853 - 2²⁰ = 782616277 is a prime.

It is a super-2 number, since 2×783664853² = 1228261203655023218, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (783666853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391832426 + 391832427.

It is an arithmetic number, because the mean of its divisors is an integer number (391832427).

Almost surely, 2^783664853 is an apocalyptic number.

It is an amenable number.

783664853 is a deficient number, since it is larger than the sum of its proper divisors (1).

783664853 is an equidigital number, since it uses as much as digits as its factorization.

783664853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 50.

The square root of 783664853 is about 27994.0145924089. The cubic root of 783664853 is about 921.9558473468.

The spelling of 783664853 in words is "seven hundred eighty-three million, six hundred sixty-four thousand, eight hundred fifty-three".