78016753 has 2 divisors, whose sum is σ = 78016754. Its totient is φ = 78016752.

The previous prime is 78016709. The next prime is 78016787. The reversal of 78016753 is 35761087.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72199009 + 5817744 = 8497^2 + 2412^2 .

It is a cyclic number.

It is not a de Polignac number, because 78016753 - 2⁹ = 78016241 is a prime.

It is a super-2 number, since 2×78016753² = 12173227497326018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78011753) 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, 39008376 + 39008377.

It is an arithmetic number, because the mean of its divisors is an integer number (39008377).

Almost surely, 2^78016753 is an apocalyptic number.

It is an amenable number.

78016753 is a deficient number, since it is larger than the sum of its proper divisors (1).

78016753 is an equidigital number, since it uses as much as digits as its factorization.

78016753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 78016753 is about 8832.7092672634. The cubic root of 78016753 is about 427.2964556599.

The spelling of 78016753 in words is "seventy-eight million, sixteen thousand, seven hundred fifty-three".