78000953 has 2 divisors, whose sum is σ = 78000954. Its totient is φ = 78000952.

The previous prime is 78000941. The next prime is 78000959. The reversal of 78000953 is 35900087.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43930384 + 34070569 = 6628^2 + 5837^2 .

It is a cyclic number.

It is not a de Polignac number, because 78000953 - 2¹⁸ = 77738809 is a prime.

It is not a weakly prime, because it can be changed into another prime (78000959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39000476 + 39000477.

It is an arithmetic number, because the mean of its divisors is an integer number (39000477).

Almost surely, 2^78000953 is an apocalyptic number.

It is an amenable number.

78000953 is a deficient number, since it is larger than the sum of its proper divisors (1).

78000953 is an equidigital number, since it uses as much as digits as its factorization.

78000953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 78000953 is about 8831.8148191637. The cubic root of 78000953 is about 427.2676082669.

The spelling of 78000953 in words is "seventy-eight million, nine hundred fifty-three", and thus it is an aban number.