78629753 has 2 divisors, whose sum is σ = 78629754. Its totient is φ = 78629752.

The previous prime is 78629723. The next prime is 78629767. The reversal of 78629753 is 35792687.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64850809 + 13778944 = 8053^2 + 3712^2 .

It is a cyclic number.

It is not a de Polignac number, because 78629753 - 2¹⁰ = 78628729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78629698 and 78629707.

It is not a weakly prime, because it can be changed into another prime (78629723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39314876 + 39314877.

It is an arithmetic number, because the mean of its divisors is an integer number (39314877).

Almost surely, 2^78629753 is an apocalyptic number.

It is an amenable number.

78629753 is a deficient number, since it is larger than the sum of its proper divisors (1).

78629753 is an equidigital number, since it uses as much as digits as its factorization.

78629753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 47.

The square root of 78629753 is about 8867.3419354393. The cubic root of 78629753 is about 428.4126675394.

The spelling of 78629753 in words is "seventy-eight million, six hundred twenty-nine thousand, seven hundred fifty-three".