763945873 has 2 divisors, whose sum is σ = 763945874. Its totient is φ = 763945872.

The previous prime is 763945843. The next prime is 763945891. The reversal of 763945873 is 378549367.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 635644944 + 128300929 = 25212^2 + 11327^2 .

It is a cyclic number.

It is not a de Polignac number, because 763945873 - 2⁵ = 763945841 is a prime.

It is a super-2 number, since 2×763945873² = 1167226593747464258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 763945873.

It is not a weakly prime, because it can be changed into another prime (763945843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 381972936 + 381972937.

It is an arithmetic number, because the mean of its divisors is an integer number (381972937).

Almost surely, 2^763945873 is an apocalyptic number.

It is an amenable number.

763945873 is a deficient number, since it is larger than the sum of its proper divisors (1).

763945873 is an equidigital number, since it uses as much as digits as its factorization.

763945873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 52.

The square root of 763945873 is about 27639.5707817614. The cubic root of 763945873 is about 914.1571555185.

The spelling of 763945873 in words is "seven hundred sixty-three million, nine hundred forty-five thousand, eight hundred seventy-three".